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/* Vuls - Vulnerability Scanner |
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Copyright (C) 2016 Future Corporation , Japan. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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package scan |
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import ( |
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"bufio" |
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"fmt" |
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"regexp" |
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"strings" |
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"time" |
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"github.com/future-architect/vuls/config" |
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"github.com/future-architect/vuls/models" |
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"github.com/future-architect/vuls/util" |
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"golang.org/x/xerrors" |
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ver "github.com/knqyf263/go-rpm-version" |
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) |
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// https://github.com/serverspec/specinfra/blob/master/lib/specinfra/helper/detect_os/redhat.rb |
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func detectRedhat(c config.ServerInfo) (bool, osTypeInterface) { |
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if r := exec(c, "ls /etc/fedora-release", noSudo); r.isSuccess() { |
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util.Log.Warnf("Fedora not tested yet: %s", r) |
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return true, &unknown{} |
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} |
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if r := exec(c, "ls /etc/oracle-release", noSudo); r.isSuccess() { |
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// Need to discover Oracle Linux first, because it provides an |
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// /etc/redhat-release that matches the upstream distribution |
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if r := exec(c, "cat /etc/oracle-release", noSudo); r.isSuccess() { |
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re := regexp.MustCompile(`(.*) release (\d[\d\.]*)`) |
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result := re.FindStringSubmatch(strings.TrimSpace(r.Stdout)) |
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if len(result) != 3 { |
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util.Log.Warnf("Failed to parse Oracle Linux version: %s", r) |
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return true, newOracle(c) |
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} |
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ora := newOracle(c) |
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release := result[2] |
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ora.setDistro(config.Oracle, release) |
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return true, ora |
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} |
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} |
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// https://bugzilla.redhat.com/show_bug.cgi?id=1332025 |
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// CentOS cloud image |
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if r := exec(c, "ls /etc/centos-release", noSudo); r.isSuccess() { |
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if r := exec(c, "cat /etc/centos-release", noSudo); r.isSuccess() { |
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re := regexp.MustCompile(`(.*) release (\d[\d\.]*)`) |
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result := re.FindStringSubmatch(strings.TrimSpace(r.Stdout)) |
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if len(result) != 3 { |
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util.Log.Warnf("Failed to parse CentOS version: %s", r) |
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return true, newCentOS(c) |
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} |
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release := result[2] |
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switch strings.ToLower(result[1]) { |
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case "centos", "centos linux": |
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cent := newCentOS(c) |
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cent.setDistro(config.CentOS, release) |
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return true, cent |
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default: |
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util.Log.Warnf("Failed to parse CentOS: %s", r) |
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} |
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} |
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} |
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if r := exec(c, "ls /etc/redhat-release", noSudo); r.isSuccess() { |
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// https://www.rackaid.com/blog/how-to-determine-centos-or-red-hat-version/ |
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// e.g. |
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// $ cat /etc/redhat-release |
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// CentOS release 6.5 (Final) |
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if r := exec(c, "cat /etc/redhat-release", noSudo); r.isSuccess() { |
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re := regexp.MustCompile(`(.*) release (\d[\d\.]*)`) |
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result := re.FindStringSubmatch(strings.TrimSpace(r.Stdout)) |
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if len(result) != 3 { |
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util.Log.Warnf("Failed to parse RedHat/CentOS version: %s", r) |
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return true, newCentOS(c) |
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} |
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release := result[2] |
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switch strings.ToLower(result[1]) { |
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case "centos", "centos linux": |
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cent := newCentOS(c) |
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cent.setDistro(config.CentOS, release) |
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return true, cent |
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default: |
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// RHEL |
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rhel := newRHEL(c) |
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rhel.setDistro(config.RedHat, release) |
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return true, rhel |
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} |
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} |
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} |
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if r := exec(c, "ls /etc/system-release", noSudo); r.isSuccess() { |
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family := config.Amazon |
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release := "unknown" |
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if r := exec(c, "cat /etc/system-release", noSudo); r.isSuccess() { |
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if strings.HasPrefix(r.Stdout, "Amazon Linux release 2") { |
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fields := strings.Fields(r.Stdout) |
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release = fmt.Sprintf("%s %s", fields[3], fields[4]) |
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} else if strings.HasPrefix(r.Stdout, "Amazon Linux 2") { |
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fields := strings.Fields(r.Stdout) |
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release = strings.Join(fields[2:], " ") |
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} else { |
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fields := strings.Fields(r.Stdout) |
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if len(fields) == 5 { |
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release = fields[4] |
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} |
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} |
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} |
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amazon := newAmazon(c) |
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amazon.setDistro(family, release) |
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return true, amazon |
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} |
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util.Log.Debugf("Not RedHat like Linux. servername: %s", c.ServerName) |
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return false, &unknown{} |
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} |
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// inherit OsTypeInterface |
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type redhatBase struct { |
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base |
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sudo rootPriv |
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} |
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type rootPriv interface { |
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repoquery() bool |
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yumRepolist() bool |
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yumUpdateInfo() bool |
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yumChangelog() bool |
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} |
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type cmd struct { |
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cmd string |
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expectedStatusCodes []int |
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} |
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var exitStatusZero = []int{0} |
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func (o *redhatBase) execCheckIfSudoNoPasswd(cmds []cmd) error { |
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for _, c := range cmds { |
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cmd := util.PrependProxyEnv(c.cmd) |
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o.log.Infof("Checking... sudo %s", cmd) |
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r := o.exec(util.PrependProxyEnv(cmd), sudo) |
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if !r.isSuccess(c.expectedStatusCodes...) { |
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o.log.Errorf("Check sudo or proxy settings: %s", r) |
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return xerrors.Errorf("Failed to sudo: %s", r) |
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} |
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} |
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o.log.Infof("Sudo... Pass") |
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return nil |
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} |
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func (o *redhatBase) execCheckDeps(packNames []string) error { |
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for _, name := range packNames { |
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cmd := "rpm -q " + name |
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if r := o.exec(cmd, noSudo); !r.isSuccess() { |
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msg := fmt.Sprintf("%s is not installed", name) |
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o.log.Errorf(msg) |
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return xerrors.New(msg) |
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} |
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} |
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o.log.Infof("Dependencies ... Pass") |
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return nil |
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} |
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func (o *redhatBase) preCure() error { |
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if err := o.detectIPAddr(); err != nil { |
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o.log.Debugf("Failed to detect IP addresses: %s", err) |
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} |
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// Ignore this error as it just failed to detect the IP addresses |
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return nil |
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} |
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func (o *redhatBase) postScan() error { |
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if o.isExecYumPS() { |
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if err := o.yumPS(); err != nil { |
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return xerrors.Errorf("Failed to execute yum-ps. err: %w", err) |
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} |
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} |
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if o.isExecNeedsRestarting() { |
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if err := o.needsRestarting(); err != nil { |
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return xerrors.Errorf("Failed to execute need-restarting: %w", err) |
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} |
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} |
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return nil |
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} |
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func (o *redhatBase) detectIPAddr() (err error) { |
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o.log.Infof("Scanning in %s", o.getServerInfo().Mode) |
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o.ServerInfo.IPv4Addrs, o.ServerInfo.IPv6Addrs, err = o.ip() |
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return err |
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} |
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func (o *redhatBase) scanPackages() error { |
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installed, err := o.scanInstalledPackages() |
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if err != nil { |
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o.log.Errorf("Failed to scan installed packages: %s", err) |
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return err |
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} |
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rebootRequired, err := o.rebootRequired() |
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if err != nil { |
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o.log.Errorf("Failed to detect the kernel reboot required: %s", err) |
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return err |
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} |
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o.Kernel.RebootRequired = rebootRequired |
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if o.getServerInfo().Mode.IsOffline() { |
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switch o.Distro.Family { |
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case config.Amazon: |
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// nop |
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default: |
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o.Packages = installed |
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return nil |
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} |
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} else if o.Distro.Family == config.RedHat { |
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if o.getServerInfo().Mode.IsFast() { |
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o.Packages = installed |
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return nil |
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} |
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} |
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updatable, err := o.scanUpdatablePackages() |
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if err != nil { |
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o.log.Errorf("Failed to scan installed packages: %s", err) |
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return err |
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} |
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installed.MergeNewVersion(updatable) |
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o.Packages = installed |
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var unsecures models.VulnInfos |
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if unsecures, err = o.scanUnsecurePackages(updatable); err != nil { |
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o.log.Errorf("Failed to scan vulnerable packages: %s", err) |
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return err |
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} |
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o.VulnInfos = unsecures |
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return nil |
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} |
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func (o *redhatBase) rebootRequired() (bool, error) { |
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r := o.exec("rpm -q --last kernel", noSudo) |
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scanner := bufio.NewScanner(strings.NewReader(r.Stdout)) |
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if !r.isSuccess(0, 1) { |
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return false, xerrors.Errorf("Failed to detect the last installed kernel : %v", r) |
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} |
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if !r.isSuccess() || !scanner.Scan() { |
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return false, nil |
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} |
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lastInstalledKernelVer := strings.Fields(scanner.Text())[0] |
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running := fmt.Sprintf("kernel-%s", o.Kernel.Release) |
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return running != lastInstalledKernelVer, nil |
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} |
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func (o *redhatBase) scanInstalledPackages() (models.Packages, error) { |
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release, version, err := o.runningKernel() |
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if err != nil { |
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return nil, err |
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} |
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o.Kernel = models.Kernel{ |
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Release: release, |
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Version: version, |
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} |
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282
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r := o.exec(rpmQa(o.Distro), noSudo) |
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if !r.isSuccess() { |
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return nil, xerrors.Errorf("Scan packages failed: %s", r) |
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} |
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installed, _, err := o.parseInstalledPackages(r.Stdout) |
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if err != nil { |
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return nil, err |
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289
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} |
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290
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return installed, nil |
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} |
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293
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func (o *redhatBase) parseInstalledPackages(stdout string) (models.Packages, models.SrcPackages, error) { |
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installed := models.Packages{} |
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295
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latestKernelRelease := ver.NewVersion("") |
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296
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297
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// openssl 0 1.0.1e 30.el6.11 x86_64 |
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298
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lines := strings.Split(stdout, "\n") |
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299
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for _, line := range lines { |
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300
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if trimed := strings.TrimSpace(line); len(trimed) != 0 { |
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301
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pack, err := o.parseInstalledPackagesLine(line) |
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if err != nil { |
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return nil, nil, err |
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} |
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305
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306
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// Kernel package may be isntalled multiple versions. |
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307
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// From the viewpoint of vulnerability detection, |
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308
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// pay attention only to the running kernel |
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309
|
|
|
isKernel, running := isRunningKernel(pack, o.Distro.Family, o.Kernel) |
|
310
|
|
|
if isKernel { |
|
311
|
|
|
if o.Kernel.Release == "" { |
|
312
|
|
|
// When the running kernel release is unknown, |
|
313
|
|
|
// use the latest release among the installed release |
|
314
|
|
|
kernelRelease := ver.NewVersion(fmt.Sprintf("%s-%s", pack.Version, pack.Release)) |
|
315
|
|
|
if kernelRelease.LessThan(latestKernelRelease) { |
|
316
|
|
|
continue |
|
317
|
|
|
} |
|
318
|
|
|
latestKernelRelease = kernelRelease |
|
319
|
|
|
} else if !running { |
|
320
|
|
|
o.log.Debugf("Not a running kernel. pack: %#v, kernel: %#v", pack, o.Kernel) |
|
321
|
|
|
continue |
|
322
|
|
|
} else { |
|
323
|
|
|
o.log.Debugf("Found a running kernel. pack: %#v, kernel: %#v", pack, o.Kernel) |
|
324
|
|
|
} |
|
325
|
|
|
} |
|
326
|
|
|
installed[pack.Name] = pack |
|
327
|
|
|
} |
|
328
|
|
|
} |
|
329
|
|
|
return installed, nil, nil |
|
330
|
|
|
} |
|
331
|
|
|
|
|
332
|
|
|
func (o *redhatBase) parseInstalledPackagesLine(line string) (models.Package, error) { |
|
333
|
|
|
fields := strings.Fields(line) |
|
334
|
|
|
if len(fields) != 5 { |
|
335
|
|
|
return models.Package{}, |
|
336
|
|
|
xerrors.Errorf("Failed to parse package line: %s", line) |
|
337
|
|
|
} |
|
338
|
|
|
ver := "" |
|
339
|
|
|
epoch := fields[1] |
|
340
|
|
|
if epoch == "0" || epoch == "(none)" { |
|
341
|
|
|
ver = fields[2] |
|
342
|
|
|
} else { |
|
343
|
|
|
ver = fmt.Sprintf("%s:%s", epoch, fields[2]) |
|
344
|
|
|
} |
|
345
|
|
|
|
|
346
|
|
|
return models.Package{ |
|
347
|
|
|
Name: fields[0], |
|
348
|
|
|
Version: ver, |
|
349
|
|
|
Release: fields[3], |
|
350
|
|
|
Arch: fields[4], |
|
351
|
|
|
}, nil |
|
352
|
|
|
} |
|
353
|
|
|
|
|
354
|
|
|
func (o *redhatBase) yumMakeCache() error { |
|
355
|
|
|
cmd := `yum makecache` |
|
356
|
|
|
//TODO check yum makecache without root priv on RHEL |
|
357
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), noSudo) |
|
358
|
|
|
if !r.isSuccess() { |
|
359
|
|
|
return xerrors.Errorf("Failed to SSH: %s", r) |
|
360
|
|
|
} |
|
361
|
|
|
return nil |
|
362
|
|
|
} |
|
363
|
|
|
|
|
364
|
|
|
func (o *redhatBase) scanUpdatablePackages() (models.Packages, error) { |
|
365
|
|
|
if err := o.yumMakeCache(); err != nil { |
|
366
|
|
|
return nil, xerrors.Errorf("Failed to `yum makecache`: %w", err) |
|
|
|
|
|
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
cmd := `repoquery --all --pkgnarrow=updates --qf="%{NAME} %{EPOCH} %{VERSION} %{RELEASE} %{REPO}"` |
|
370
|
|
|
for _, repo := range o.getServerInfo().Enablerepo { |
|
371
|
|
|
cmd += " --enablerepo=" + repo |
|
372
|
|
|
} |
|
373
|
|
|
|
|
374
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), o.sudo.repoquery()) |
|
375
|
|
|
if !r.isSuccess() { |
|
376
|
|
|
return nil, xerrors.Errorf("Failed to SSH: %s", r) |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
|
|
// Collect Updateble packages, installed, candidate version and repository. |
|
380
|
|
|
return o.parseUpdatablePacksLines(r.Stdout) |
|
381
|
|
|
} |
|
382
|
|
|
|
|
383
|
|
|
// parseUpdatablePacksLines parse the stdout of repoquery to get package name, candidate version |
|
384
|
|
|
func (o *redhatBase) parseUpdatablePacksLines(stdout string) (models.Packages, error) { |
|
385
|
|
|
updatable := models.Packages{} |
|
386
|
|
|
lines := strings.Split(stdout, "\n") |
|
387
|
|
|
for _, line := range lines { |
|
388
|
|
|
// TODO remove |
|
389
|
|
|
// if strings.HasPrefix(line, "Obsoleting") || |
|
390
|
|
|
// strings.HasPrefix(line, "Security:") { |
|
391
|
|
|
// // see https://github.com/future-architect/vuls/issues/165 |
|
392
|
|
|
// continue |
|
393
|
|
|
// } |
|
394
|
|
|
if len(strings.TrimSpace(line)) == 0 { |
|
395
|
|
|
continue |
|
396
|
|
|
} else if strings.HasPrefix(line, "Loading") { |
|
397
|
|
|
continue |
|
398
|
|
|
} |
|
399
|
|
|
pack, err := o.parseUpdatablePacksLine(line) |
|
400
|
|
|
if err != nil { |
|
401
|
|
|
return updatable, err |
|
402
|
|
|
} |
|
403
|
|
|
updatable[pack.Name] = pack |
|
404
|
|
|
} |
|
405
|
|
|
return updatable, nil |
|
406
|
|
|
} |
|
407
|
|
|
|
|
408
|
|
|
func (o *redhatBase) parseUpdatablePacksLine(line string) (models.Package, error) { |
|
409
|
|
|
fields := strings.Fields(line) |
|
410
|
|
|
if len(fields) < 5 { |
|
411
|
|
|
return models.Package{}, xerrors.Errorf("Unknown format: %s, fields: %s", line, fields) |
|
412
|
|
|
} |
|
413
|
|
|
|
|
414
|
|
|
ver := "" |
|
415
|
|
|
epoch := fields[1] |
|
416
|
|
|
if epoch == "0" { |
|
417
|
|
|
ver = fields[2] |
|
418
|
|
|
} else { |
|
419
|
|
|
ver = fmt.Sprintf("%s:%s", epoch, fields[2]) |
|
420
|
|
|
} |
|
421
|
|
|
|
|
422
|
|
|
repos := strings.Join(fields[4:], " ") |
|
423
|
|
|
|
|
424
|
|
|
p := models.Package{ |
|
425
|
|
|
Name: fields[0], |
|
426
|
|
|
NewVersion: ver, |
|
427
|
|
|
NewRelease: fields[3], |
|
428
|
|
|
Repository: repos, |
|
429
|
|
|
} |
|
430
|
|
|
return p, nil |
|
431
|
|
|
} |
|
432
|
|
|
|
|
433
|
|
|
func (o *redhatBase) isExecScanUsingYum() bool { |
|
434
|
|
|
if o.getServerInfo().Mode.IsOffline() { |
|
435
|
|
|
return false |
|
436
|
|
|
} |
|
437
|
|
|
if o.Distro.Family == config.CentOS { |
|
438
|
|
|
// CentOS doesn't have security channel |
|
439
|
|
|
return false |
|
440
|
|
|
} |
|
441
|
|
|
if o.getServerInfo().Mode.IsFastRoot() || o.getServerInfo().Mode.IsDeep() { |
|
442
|
|
|
return true |
|
443
|
|
|
} |
|
444
|
|
|
return true |
|
445
|
|
|
} |
|
446
|
|
|
|
|
447
|
|
|
func (o *redhatBase) isExecFillChangelogs() bool { |
|
448
|
|
|
if o.getServerInfo().Mode.IsOffline() { |
|
449
|
|
|
return false |
|
450
|
|
|
} |
|
451
|
|
|
// Amazon linux has no changelos for updates |
|
452
|
|
|
return o.getServerInfo().Mode.IsDeep() && |
|
453
|
|
|
o.Distro.Family != config.Amazon |
|
454
|
|
|
} |
|
455
|
|
|
|
|
456
|
|
|
func (o *redhatBase) isExecScanChangelogs() bool { |
|
457
|
|
|
if o.getServerInfo().Mode.IsOffline() || |
|
458
|
|
|
o.getServerInfo().Mode.IsFast() || |
|
459
|
|
|
o.getServerInfo().Mode.IsFastRoot() { |
|
460
|
|
|
return false |
|
461
|
|
|
} |
|
462
|
|
|
return true |
|
463
|
|
|
} |
|
464
|
|
|
|
|
465
|
|
|
func (o *redhatBase) isExecYumPS() bool { |
|
466
|
|
|
// RedHat has no yum-ps |
|
467
|
|
|
switch o.Distro.Family { |
|
468
|
|
|
case config.RedHat, |
|
469
|
|
|
config.OpenSUSE, |
|
470
|
|
|
config.OpenSUSELeap, |
|
471
|
|
|
config.SUSEEnterpriseServer, |
|
472
|
|
|
config.SUSEEnterpriseDesktop, |
|
473
|
|
|
config.SUSEOpenstackCloud: |
|
474
|
|
|
return false |
|
475
|
|
|
} |
|
476
|
|
|
|
|
477
|
|
|
// yum ps needs internet connection |
|
478
|
|
|
if o.getServerInfo().Mode.IsOffline() || o.getServerInfo().Mode.IsFast() { |
|
479
|
|
|
return false |
|
480
|
|
|
} |
|
481
|
|
|
return true |
|
482
|
|
|
} |
|
483
|
|
|
|
|
484
|
|
|
func (o *redhatBase) isExecNeedsRestarting() bool { |
|
485
|
|
|
switch o.Distro.Family { |
|
486
|
|
|
case config.OpenSUSE, |
|
487
|
|
|
config.OpenSUSELeap, |
|
488
|
|
|
config.SUSEEnterpriseServer, |
|
489
|
|
|
config.SUSEEnterpriseDesktop, |
|
490
|
|
|
config.SUSEOpenstackCloud: |
|
491
|
|
|
// TODO zypper ps |
|
492
|
|
|
// https://github.com/future-architect/vuls/issues/696 |
|
493
|
|
|
return false |
|
494
|
|
|
case config.RedHat, config.CentOS, config.Oracle: |
|
495
|
|
|
majorVersion, err := o.Distro.MajorVersion() |
|
496
|
|
|
if err != nil || majorVersion < 6 { |
|
497
|
|
|
o.log.Errorf("Not implemented yet: %s, err: %s", o.Distro, err) |
|
|
|
|
|
|
498
|
|
|
return false |
|
499
|
|
|
} |
|
500
|
|
|
|
|
501
|
|
|
if o.getServerInfo().Mode.IsOffline() { |
|
502
|
|
|
return false |
|
503
|
|
|
} else if o.getServerInfo().Mode.IsFastRoot() || |
|
504
|
|
|
o.getServerInfo().Mode.IsDeep() { |
|
505
|
|
|
return true |
|
506
|
|
|
} |
|
507
|
|
|
return false |
|
508
|
|
|
} |
|
509
|
|
|
|
|
510
|
|
|
if o.getServerInfo().Mode.IsFast() { |
|
511
|
|
|
return false |
|
512
|
|
|
} |
|
513
|
|
|
return true |
|
514
|
|
|
} |
|
515
|
|
|
|
|
516
|
|
|
func (o *redhatBase) scanUnsecurePackages(updatable models.Packages) (models.VulnInfos, error) { |
|
517
|
|
|
if o.isExecFillChangelogs() { |
|
518
|
|
|
if err := o.fillChangelogs(updatable); err != nil { |
|
519
|
|
|
return nil, err |
|
520
|
|
|
} |
|
521
|
|
|
} |
|
522
|
|
|
|
|
523
|
|
|
if o.isExecScanUsingYum() { |
|
524
|
|
|
return o.scanUsingYum(updatable) |
|
525
|
|
|
} |
|
526
|
|
|
|
|
527
|
|
|
// Parse changelog because CentOS does not have security channel... |
|
528
|
|
|
if o.isExecScanChangelogs() { |
|
529
|
|
|
return o.scanChangelogs(updatable) |
|
530
|
|
|
} |
|
531
|
|
|
|
|
532
|
|
|
return models.VulnInfos{}, nil |
|
533
|
|
|
} |
|
534
|
|
|
|
|
535
|
|
|
func (o *redhatBase) fillChangelogs(updatables models.Packages) error { |
|
536
|
|
|
names := []string{} |
|
537
|
|
|
for name := range updatables { |
|
538
|
|
|
names = append(names, name) |
|
539
|
|
|
} |
|
540
|
|
|
|
|
541
|
|
|
if err := o.fillDiffChangelogs(names); err != nil { |
|
542
|
|
|
return err |
|
543
|
|
|
} |
|
544
|
|
|
|
|
545
|
|
|
emptyChangelogPackNames := []string{} |
|
546
|
|
|
for _, pack := range o.Packages { |
|
547
|
|
|
if pack.NewVersion != "" && pack.Changelog.Contents == "" { |
|
548
|
|
|
emptyChangelogPackNames = append(emptyChangelogPackNames, pack.Name) |
|
549
|
|
|
} |
|
550
|
|
|
} |
|
551
|
|
|
|
|
552
|
|
|
i := 0 |
|
553
|
|
|
for _, name := range emptyChangelogPackNames { |
|
554
|
|
|
i++ |
|
555
|
|
|
o.log.Infof("(%d/%d) Fetched Changelogs %s", i, len(emptyChangelogPackNames), name) |
|
556
|
|
|
if err := o.fillDiffChangelogs([]string{name}); err != nil { |
|
557
|
|
|
return err |
|
558
|
|
|
} |
|
559
|
|
|
} |
|
560
|
|
|
|
|
561
|
|
|
return nil |
|
562
|
|
|
} |
|
563
|
|
|
|
|
564
|
|
|
func (o *redhatBase) getAvailableChangelogs(packNames []string) (map[string]string, error) { |
|
565
|
|
|
yumopts := "" |
|
566
|
|
|
if 0 < len(o.getServerInfo().Enablerepo) { |
|
567
|
|
|
yumopts = " --enablerepo=" + strings.Join(o.getServerInfo().Enablerepo, ",") |
|
568
|
|
|
} |
|
569
|
|
|
if config.Conf.SkipBroken { |
|
570
|
|
|
yumopts += " --skip-broken" |
|
571
|
|
|
} |
|
572
|
|
|
if o.hasYumColorOption() { |
|
573
|
|
|
yumopts += " --color=never" |
|
574
|
|
|
} |
|
575
|
|
|
cmd := `yum changelog all updates %s %s | grep -A 1000000 "==================== Updated Packages ===================="` |
|
576
|
|
|
cmd = fmt.Sprintf(cmd, yumopts, strings.Join(packNames, " ")) |
|
|
|
|
|
|
577
|
|
|
|
|
578
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), o.sudo.yumChangelog()) |
|
579
|
|
|
if !r.isSuccess(0, 1) { |
|
580
|
|
|
return nil, xerrors.Errorf("Failed to SSH: %s", r) |
|
581
|
|
|
} |
|
582
|
|
|
|
|
583
|
|
|
return o.divideChangelogsIntoEachPackages(r.Stdout), nil |
|
584
|
|
|
} |
|
585
|
|
|
|
|
586
|
|
|
// Divide available change logs of all updatable packages into each package's changelog |
|
587
|
|
|
func (o *redhatBase) divideChangelogsIntoEachPackages(stdout string) map[string]string { |
|
588
|
|
|
changelogs := make(map[string]string) |
|
589
|
|
|
scanner := bufio.NewScanner(strings.NewReader(stdout)) |
|
590
|
|
|
|
|
591
|
|
|
crlf, newBlock := false, true |
|
592
|
|
|
packNameVer, contents := "", []string{} |
|
593
|
|
|
for scanner.Scan() { |
|
594
|
|
|
line := scanner.Text() |
|
595
|
|
|
if strings.HasPrefix(line, "==================== Updated Packages ====================") { |
|
596
|
|
|
continue |
|
597
|
|
|
} |
|
598
|
|
|
if len(strings.TrimSpace(line)) != 0 && newBlock { |
|
599
|
|
|
left := strings.Fields(line)[0] |
|
600
|
|
|
// ss := strings.Split(left, ".") |
|
601
|
|
|
// packNameVer = strings.Join(ss[0:len(ss)-1], ".") |
|
602
|
|
|
packNameVer = left |
|
603
|
|
|
newBlock = false |
|
604
|
|
|
continue |
|
605
|
|
|
} |
|
606
|
|
|
if len(strings.TrimSpace(line)) == 0 { |
|
607
|
|
|
if crlf { |
|
608
|
|
|
changelogs[packNameVer] = strings.Join(contents, "\n") |
|
609
|
|
|
packNameVer = "" |
|
610
|
|
|
contents = []string{} |
|
611
|
|
|
newBlock = true |
|
612
|
|
|
crlf = false |
|
613
|
|
|
} else { |
|
614
|
|
|
contents = append(contents, line) |
|
615
|
|
|
crlf = true |
|
616
|
|
|
} |
|
617
|
|
|
} else { |
|
618
|
|
|
contents = append(contents, line) |
|
619
|
|
|
crlf = false |
|
620
|
|
|
} |
|
621
|
|
|
} |
|
622
|
|
|
if 0 < len(contents) { |
|
623
|
|
|
changelogs[packNameVer] = strings.Join(contents, "\n") |
|
624
|
|
|
} |
|
625
|
|
|
return changelogs |
|
626
|
|
|
} |
|
627
|
|
|
|
|
628
|
|
|
func (o *redhatBase) fillDiffChangelogs(packNames []string) error { |
|
629
|
|
|
changelogs, err := o.getAvailableChangelogs(packNames) |
|
630
|
|
|
if err != nil { |
|
631
|
|
|
return err |
|
632
|
|
|
} |
|
633
|
|
|
|
|
634
|
|
|
for s := range changelogs { |
|
635
|
|
|
// name, pack, found := o.Packages.FindOne(func(p models.Package) bool { |
|
636
|
|
|
name, pack, found := o.Packages.FindOne(func(p models.Package) bool { |
|
637
|
|
|
var epochNameVerRel string |
|
638
|
|
|
if index := strings.Index(p.NewVersion, ":"); 0 < index { |
|
639
|
|
|
epoch := p.NewVersion[0:index] |
|
640
|
|
|
ver := p.NewVersion[index+1 : len(p.NewVersion)] |
|
641
|
|
|
epochNameVerRel = fmt.Sprintf("%s:%s-%s", epoch, p.Name, ver) |
|
642
|
|
|
} else { |
|
643
|
|
|
epochNameVerRel = fmt.Sprintf("%s-%s", p.Name, p.NewVersion) |
|
644
|
|
|
} |
|
645
|
|
|
return strings.HasPrefix(s, epochNameVerRel) |
|
646
|
|
|
}) |
|
647
|
|
|
|
|
648
|
|
|
if found { |
|
649
|
|
|
var detectionMethod string |
|
650
|
|
|
diff, err := o.getDiffChangelog(pack, changelogs[s]) |
|
651
|
|
|
if err == nil { |
|
652
|
|
|
detectionMethod = models.ChangelogExactMatchStr |
|
653
|
|
|
} else { |
|
654
|
|
|
o.log.Debug(err) |
|
655
|
|
|
// Try without epoch |
|
656
|
|
|
if index := strings.Index(pack.Version, ":"); 0 < index { |
|
657
|
|
|
pack.Version = pack.Version[index+1 : len(pack.Version)] |
|
658
|
|
|
o.log.Debug("Try without epoch", pack) |
|
659
|
|
|
diff, err = o.getDiffChangelog(pack, changelogs[s]) |
|
660
|
|
|
if err != nil { |
|
661
|
|
|
o.log.Debugf("Failed to find the version in changelog: %s-%s-%s", |
|
662
|
|
|
pack.Name, pack.Version, pack.Release) |
|
663
|
|
|
if len(diff) == 0 { |
|
664
|
|
|
detectionMethod = models.FailedToGetChangelog |
|
665
|
|
|
} else { |
|
666
|
|
|
detectionMethod = models.FailedToFindVersionInChangelog |
|
667
|
|
|
diff = "" |
|
668
|
|
|
} |
|
669
|
|
|
} else { |
|
670
|
|
|
o.log.Debugf("Found the version in changelog without epoch: %s-%s-%s", |
|
671
|
|
|
pack.Name, pack.Version, pack.Release) |
|
672
|
|
|
detectionMethod = models.ChangelogLenientMatchStr |
|
673
|
|
|
} |
|
674
|
|
|
} else { |
|
675
|
|
|
if len(diff) == 0 { |
|
676
|
|
|
detectionMethod = models.FailedToGetChangelog |
|
677
|
|
|
} else { |
|
678
|
|
|
detectionMethod = models.FailedToFindVersionInChangelog |
|
679
|
|
|
diff = "" |
|
680
|
|
|
} |
|
681
|
|
|
} |
|
682
|
|
|
} |
|
683
|
|
|
|
|
684
|
|
|
pack = o.Packages[name] |
|
685
|
|
|
pack.Changelog = models.Changelog{ |
|
686
|
|
|
Contents: diff, |
|
687
|
|
|
Method: models.DetectionMethod(detectionMethod), |
|
688
|
|
|
} |
|
689
|
|
|
o.Packages[name] = pack |
|
690
|
|
|
} |
|
691
|
|
|
} |
|
692
|
|
|
return nil |
|
693
|
|
|
} |
|
694
|
|
|
|
|
695
|
|
|
func (o *redhatBase) getDiffChangelog(pack models.Package, availableChangelog string) (string, error) { |
|
696
|
|
|
installedVer := ver.NewVersion(fmt.Sprintf("%s-%s", pack.Version, pack.Release)) |
|
697
|
|
|
scanner := bufio.NewScanner(strings.NewReader(availableChangelog)) |
|
698
|
|
|
diff := []string{} |
|
699
|
|
|
found := false |
|
700
|
|
|
for scanner.Scan() { |
|
701
|
|
|
line := scanner.Text() |
|
702
|
|
|
if !strings.HasPrefix(line, "* ") { |
|
703
|
|
|
diff = append(diff, line) |
|
704
|
|
|
continue |
|
705
|
|
|
} |
|
706
|
|
|
|
|
707
|
|
|
// openssh on RHEL |
|
708
|
|
|
// openssh-server-6.6.1p1-35.el7_3.x86_64 rhui-rhel-7-server-rhui-rpms |
|
709
|
|
|
// Wed Mar 1 21:00:00 2017 Jakub Jelen <[email protected]> - 6.6.1p1-35 + 0.9.3-9 |
|
710
|
|
|
ss := strings.Split(line, " + ") |
|
711
|
|
|
if 1 < len(ss) { |
|
712
|
|
|
line = ss[0] |
|
713
|
|
|
} |
|
714
|
|
|
|
|
715
|
|
|
ss = strings.Split(line, " ") |
|
716
|
|
|
if len(ss) < 2 { |
|
717
|
|
|
diff = append(diff, line) |
|
718
|
|
|
continue |
|
719
|
|
|
} |
|
720
|
|
|
v := ss[len(ss)-1] |
|
721
|
|
|
v = strings.TrimPrefix(v, "-") |
|
722
|
|
|
v = strings.TrimPrefix(v, "[") |
|
723
|
|
|
v = strings.TrimSuffix(v, "]") |
|
724
|
|
|
|
|
725
|
|
|
// On Amazon often end with email address. <[email protected]> Go to next line |
|
726
|
|
|
if strings.HasPrefix(v, "<") && strings.HasSuffix(v, ">") { |
|
727
|
|
|
diff = append(diff, line) |
|
728
|
|
|
continue |
|
729
|
|
|
} |
|
730
|
|
|
|
|
731
|
|
|
version := ver.NewVersion(v) |
|
732
|
|
|
if installedVer.Equal(version) || installedVer.GreaterThan(version) { |
|
733
|
|
|
found = true |
|
734
|
|
|
break |
|
735
|
|
|
} |
|
736
|
|
|
diff = append(diff, line) |
|
737
|
|
|
} |
|
738
|
|
|
|
|
739
|
|
|
if len(diff) == 0 || !found { |
|
740
|
|
|
return availableChangelog, |
|
741
|
|
|
xerrors.Errorf("Failed to find the version in changelog: %s-%s-%s", |
|
742
|
|
|
pack.Name, pack.Version, pack.Release) |
|
743
|
|
|
} |
|
744
|
|
|
return strings.TrimSpace(strings.Join(diff, "\n")), nil |
|
745
|
|
|
} |
|
746
|
|
|
|
|
747
|
|
|
func (o *redhatBase) scanChangelogs(updatable models.Packages) (models.VulnInfos, error) { |
|
748
|
|
|
packCveIDs := make(map[string][]string) |
|
749
|
|
|
for name := range updatable { |
|
750
|
|
|
cveIDs := []string{} |
|
751
|
|
|
pack := o.Packages[name] |
|
752
|
|
|
if pack.Changelog.Method == models.FailedToFindVersionInChangelog { |
|
753
|
|
|
continue |
|
754
|
|
|
} |
|
755
|
|
|
scanner := bufio.NewScanner(strings.NewReader(pack.Changelog.Contents)) |
|
756
|
|
|
for scanner.Scan() { |
|
757
|
|
|
if matches := cveRe.FindAllString(scanner.Text(), -1); 0 < len(matches) { |
|
758
|
|
|
for _, m := range matches { |
|
759
|
|
|
cveIDs = util.AppendIfMissing(cveIDs, m) |
|
760
|
|
|
} |
|
761
|
|
|
} |
|
762
|
|
|
} |
|
763
|
|
|
packCveIDs[name] = cveIDs |
|
764
|
|
|
} |
|
765
|
|
|
|
|
766
|
|
|
// transform datastructure |
|
767
|
|
|
// - From |
|
768
|
|
|
// "packname": []{"CVE-2017-1111", ".../ |
|
769
|
|
|
// |
|
770
|
|
|
// - To |
|
771
|
|
|
// map { |
|
772
|
|
|
// "CVE-2017-1111": "packname", |
|
773
|
|
|
// } |
|
774
|
|
|
vinfos := models.VulnInfos{} |
|
775
|
|
|
for name, cveIDs := range packCveIDs { |
|
776
|
|
|
for _, cid := range cveIDs { |
|
777
|
|
|
if v, ok := vinfos[cid]; ok { |
|
778
|
|
|
v.AffectedPackages = append(v.AffectedPackages, models.PackageFixStatus{Name: name}) |
|
779
|
|
|
vinfos[cid] = v |
|
780
|
|
|
} else { |
|
781
|
|
|
vinfos[cid] = models.VulnInfo{ |
|
782
|
|
|
CveID: cid, |
|
783
|
|
|
AffectedPackages: models.PackageFixStatuses{{Name: name}}, |
|
784
|
|
|
Confidences: models.Confidences{models.ChangelogExactMatch}, |
|
785
|
|
|
} |
|
786
|
|
|
} |
|
787
|
|
|
} |
|
788
|
|
|
} |
|
789
|
|
|
return vinfos, nil |
|
790
|
|
|
} |
|
791
|
|
|
|
|
792
|
|
|
type distroAdvisoryCveIDs struct { |
|
793
|
|
|
DistroAdvisory models.DistroAdvisory |
|
794
|
|
|
CveIDs []string |
|
795
|
|
|
} |
|
796
|
|
|
|
|
797
|
|
|
// Scaning unsecure packages using yum-plugin-security. |
|
798
|
|
|
// Amazon, RHEL, Oracle Linux |
|
799
|
|
|
func (o *redhatBase) scanUsingYum(updatable models.Packages) (models.VulnInfos, error) { |
|
800
|
|
|
if o.Distro.Family == config.CentOS { |
|
801
|
|
|
// CentOS has no security channel. |
|
802
|
|
|
return nil, xerrors.New( |
|
803
|
|
|
"yum updateinfo is not suppported on CentOS") |
|
804
|
|
|
} |
|
805
|
|
|
|
|
806
|
|
|
// get advisoryID(RHSA, ALAS, ELSA) - package name,version |
|
807
|
|
|
major, err := (o.Distro.MajorVersion()) |
|
808
|
|
|
if err != nil { |
|
809
|
|
|
return nil, xerrors.Errorf("Not implemented yet: %s, err: %w", o.Distro, err) |
|
|
|
|
|
|
810
|
|
|
} |
|
811
|
|
|
|
|
812
|
|
|
var cmd string |
|
813
|
|
|
if (o.Distro.Family == config.RedHat || o.Distro.Family == config.Oracle) && major > 5 { |
|
814
|
|
|
cmd = "yum repolist --color=never" |
|
815
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), o.sudo.yumRepolist()) |
|
816
|
|
|
if !r.isSuccess() { |
|
817
|
|
|
return nil, xerrors.Errorf("Failed to SSH: %s", r) |
|
818
|
|
|
} |
|
819
|
|
|
} |
|
820
|
|
|
|
|
821
|
|
|
if (o.Distro.Family == config.RedHat || o.Distro.Family == config.Oracle) && major == 5 { |
|
822
|
|
|
cmd = "yum list-security --security" |
|
823
|
|
|
if o.hasYumColorOption() { |
|
824
|
|
|
cmd += " --color=never" |
|
825
|
|
|
} |
|
826
|
|
|
} else { |
|
827
|
|
|
cmd = "yum updateinfo list updates --security --color=never" |
|
828
|
|
|
} |
|
829
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), o.sudo.yumUpdateInfo()) |
|
830
|
|
|
if !r.isSuccess() { |
|
831
|
|
|
return nil, xerrors.Errorf("Failed to SSH: %s", r) |
|
832
|
|
|
} |
|
833
|
|
|
advIDPackNamesList, err := o.parseYumUpdateinfoListAvailable(r.Stdout) |
|
834
|
|
|
|
|
835
|
|
|
dict := make(map[string]models.Packages) |
|
836
|
|
|
for _, advIDPackNames := range advIDPackNamesList { |
|
837
|
|
|
packages := models.Packages{} |
|
838
|
|
|
for _, packName := range advIDPackNames.PackNames { |
|
839
|
|
|
pack, found := updatable[packName] |
|
840
|
|
|
if !found { |
|
841
|
|
|
return nil, xerrors.Errorf( |
|
842
|
|
|
"Package not found. pack: %#v", packName) |
|
843
|
|
|
} |
|
844
|
|
|
packages[pack.Name] = pack |
|
845
|
|
|
continue |
|
846
|
|
|
} |
|
847
|
|
|
dict[advIDPackNames.AdvisoryID] = packages |
|
848
|
|
|
} |
|
849
|
|
|
|
|
850
|
|
|
// get advisoryID(RHSA, ALAS, ELSA) - CVE IDs |
|
851
|
|
|
if (o.Distro.Family == config.RedHat || o.Distro.Family == config.Oracle) && major == 5 { |
|
852
|
|
|
cmd = "yum info-security" |
|
853
|
|
|
if o.hasYumColorOption() { |
|
854
|
|
|
cmd += " --color=never" |
|
855
|
|
|
} |
|
856
|
|
|
} else { |
|
857
|
|
|
cmd = "yum updateinfo updates --security --color=never" |
|
858
|
|
|
} |
|
859
|
|
|
r = o.exec(util.PrependProxyEnv(cmd), o.sudo.yumUpdateInfo()) |
|
860
|
|
|
if !r.isSuccess() { |
|
861
|
|
|
return nil, xerrors.Errorf("Failed to SSH: %s", r) |
|
862
|
|
|
} |
|
863
|
|
|
advisoryCveIDsList, err := o.parseYumUpdateinfo(r.Stdout) |
|
864
|
|
|
if err != nil { |
|
865
|
|
|
return nil, err |
|
866
|
|
|
} |
|
867
|
|
|
|
|
868
|
|
|
// All information collected. |
|
869
|
|
|
// Convert to VulnInfos. |
|
870
|
|
|
vinfos := models.VulnInfos{} |
|
871
|
|
|
for _, advIDCveIDs := range advisoryCveIDsList { |
|
872
|
|
|
for _, cveID := range advIDCveIDs.CveIDs { |
|
873
|
|
|
vinfo, found := vinfos[cveID] |
|
874
|
|
|
if found { |
|
875
|
|
|
advAppended := append(vinfo.DistroAdvisories, advIDCveIDs.DistroAdvisory) |
|
876
|
|
|
vinfo.DistroAdvisories = advAppended |
|
877
|
|
|
|
|
878
|
|
|
packs := dict[advIDCveIDs.DistroAdvisory.AdvisoryID] |
|
879
|
|
|
for _, pack := range packs { |
|
880
|
|
|
vinfo.AffectedPackages = append(vinfo.AffectedPackages, |
|
881
|
|
|
models.PackageFixStatus{Name: pack.Name}) |
|
882
|
|
|
} |
|
883
|
|
|
} else { |
|
884
|
|
|
packs := dict[advIDCveIDs.DistroAdvisory.AdvisoryID] |
|
885
|
|
|
affected := models.PackageFixStatuses{} |
|
886
|
|
|
for _, p := range packs { |
|
887
|
|
|
affected = append(affected, models.PackageFixStatus{Name: p.Name}) |
|
888
|
|
|
} |
|
889
|
|
|
vinfo = models.VulnInfo{ |
|
890
|
|
|
CveID: cveID, |
|
891
|
|
|
DistroAdvisories: []models.DistroAdvisory{advIDCveIDs.DistroAdvisory}, |
|
892
|
|
|
AffectedPackages: affected, |
|
893
|
|
|
Confidences: models.Confidences{models.YumUpdateSecurityMatch}, |
|
894
|
|
|
} |
|
895
|
|
|
} |
|
896
|
|
|
vinfos[cveID] = vinfo |
|
897
|
|
|
} |
|
898
|
|
|
} |
|
899
|
|
|
return vinfos, nil |
|
900
|
|
|
} |
|
901
|
|
|
|
|
902
|
|
|
var horizontalRulePattern = regexp.MustCompile(`^=+$`) |
|
903
|
|
|
|
|
904
|
|
|
func (o *redhatBase) parseYumUpdateinfo(stdout string) (result []distroAdvisoryCveIDs, err error) { |
|
905
|
|
|
sectionState := Outside |
|
906
|
|
|
lines := strings.Split(stdout, "\n") |
|
907
|
|
|
lines = append(lines, "=============") |
|
908
|
|
|
|
|
909
|
|
|
// Amazon Linux AMI Security Information |
|
910
|
|
|
advisory := models.DistroAdvisory{} |
|
911
|
|
|
|
|
912
|
|
|
cveIDsSetInThisSection := make(map[string]bool) |
|
913
|
|
|
|
|
914
|
|
|
// use this flag to Collect CVE IDs in CVEs field. |
|
915
|
|
|
inDesctiption, inCves := false, false |
|
916
|
|
|
|
|
917
|
|
|
for _, line := range lines { |
|
918
|
|
|
line = strings.TrimSpace(line) |
|
919
|
|
|
|
|
920
|
|
|
// find the new section pattern |
|
921
|
|
|
if horizontalRulePattern.MatchString(line) { |
|
922
|
|
|
// set previous section's result to return-variable |
|
923
|
|
|
if sectionState == Content { |
|
924
|
|
|
foundCveIDs := []string{} |
|
925
|
|
|
for cveID := range cveIDsSetInThisSection { |
|
926
|
|
|
foundCveIDs = append(foundCveIDs, cveID) |
|
927
|
|
|
} |
|
928
|
|
|
result = append(result, distroAdvisoryCveIDs{ |
|
929
|
|
|
DistroAdvisory: advisory, |
|
930
|
|
|
CveIDs: foundCveIDs, |
|
931
|
|
|
}) |
|
932
|
|
|
|
|
933
|
|
|
// reset for next section. |
|
934
|
|
|
cveIDsSetInThisSection = make(map[string]bool) |
|
935
|
|
|
inDesctiption, inCves = false, false |
|
936
|
|
|
advisory = models.DistroAdvisory{} |
|
937
|
|
|
} |
|
938
|
|
|
|
|
939
|
|
|
// Go to next section |
|
940
|
|
|
sectionState = o.changeSectionState(sectionState) |
|
941
|
|
|
continue |
|
942
|
|
|
} |
|
943
|
|
|
|
|
944
|
|
|
switch sectionState { |
|
945
|
|
|
case Header: |
|
946
|
|
|
switch o.Distro.Family { |
|
947
|
|
|
case config.CentOS: |
|
948
|
|
|
// CentOS has no security channel. |
|
949
|
|
|
return result, xerrors.New( |
|
950
|
|
|
"yum updateinfo is not suppported on CentOS") |
|
951
|
|
|
case config.RedHat, config.Amazon, config.Oracle: |
|
952
|
|
|
// nop |
|
953
|
|
|
} |
|
954
|
|
|
|
|
955
|
|
|
case Content: |
|
956
|
|
|
if found := o.isDescriptionLine(line); found { |
|
957
|
|
|
inDesctiption, inCves = true, false |
|
958
|
|
|
ss := strings.Split(line, " : ") |
|
959
|
|
|
advisory.Description += fmt.Sprintf("%s\n", |
|
960
|
|
|
strings.Join(ss[1:], " : ")) |
|
961
|
|
|
continue |
|
962
|
|
|
} |
|
963
|
|
|
|
|
964
|
|
|
// severity |
|
965
|
|
|
if severity, found := o.parseYumUpdateinfoToGetSeverity(line); found { |
|
966
|
|
|
advisory.Severity = severity |
|
967
|
|
|
continue |
|
968
|
|
|
} |
|
969
|
|
|
|
|
970
|
|
|
// No need to parse in description except severity |
|
971
|
|
|
if inDesctiption { |
|
972
|
|
|
if ss := strings.Split(line, ": "); 1 < len(ss) { |
|
973
|
|
|
advisory.Description += fmt.Sprintf("%s\n", |
|
974
|
|
|
strings.Join(ss[1:], ": ")) |
|
975
|
|
|
} |
|
976
|
|
|
continue |
|
977
|
|
|
} |
|
978
|
|
|
|
|
979
|
|
|
if found := o.isCvesHeaderLine(line); found { |
|
980
|
|
|
inCves = true |
|
981
|
|
|
ss := strings.Split(line, "CVEs : ") |
|
982
|
|
|
line = strings.Join(ss[1:], " ") |
|
983
|
|
|
cveIDs := o.parseYumUpdateinfoLineToGetCveIDs(line) |
|
984
|
|
|
for _, cveID := range cveIDs { |
|
985
|
|
|
cveIDsSetInThisSection[cveID] = true |
|
986
|
|
|
} |
|
987
|
|
|
continue |
|
988
|
|
|
} |
|
989
|
|
|
|
|
990
|
|
|
if inCves { |
|
991
|
|
|
cveIDs := o.parseYumUpdateinfoLineToGetCveIDs(line) |
|
992
|
|
|
for _, cveID := range cveIDs { |
|
993
|
|
|
cveIDsSetInThisSection[cveID] = true |
|
994
|
|
|
} |
|
995
|
|
|
} |
|
996
|
|
|
|
|
997
|
|
|
advisoryID, found := o.parseYumUpdateinfoToGetAdvisoryID(line) |
|
998
|
|
|
if found { |
|
999
|
|
|
advisory.AdvisoryID = advisoryID |
|
1000
|
|
|
continue |
|
1001
|
|
|
} |
|
1002
|
|
|
|
|
1003
|
|
|
issued, found := o.parseYumUpdateinfoLineToGetIssued(line) |
|
1004
|
|
|
if found { |
|
1005
|
|
|
advisory.Issued = issued |
|
1006
|
|
|
continue |
|
1007
|
|
|
} |
|
1008
|
|
|
|
|
1009
|
|
|
updated, found := o.parseYumUpdateinfoLineToGetUpdated(line) |
|
1010
|
|
|
if found { |
|
1011
|
|
|
advisory.Updated = updated |
|
1012
|
|
|
continue |
|
1013
|
|
|
} |
|
1014
|
|
|
} |
|
1015
|
|
|
} |
|
1016
|
|
|
return |
|
1017
|
|
|
} |
|
1018
|
|
|
|
|
1019
|
|
|
// state |
|
1020
|
|
|
const ( |
|
1021
|
|
|
Outside = iota |
|
1022
|
|
|
Header = iota |
|
1023
|
|
|
Content = iota |
|
1024
|
|
|
) |
|
1025
|
|
|
|
|
1026
|
|
|
func (o *redhatBase) changeSectionState(state int) (newState int) { |
|
1027
|
|
|
switch state { |
|
1028
|
|
|
case Outside, Content: |
|
1029
|
|
|
newState = Header |
|
1030
|
|
|
case Header: |
|
1031
|
|
|
newState = Content |
|
1032
|
|
|
} |
|
1033
|
|
|
return newState |
|
1034
|
|
|
} |
|
1035
|
|
|
|
|
1036
|
|
|
func (o *redhatBase) isCvesHeaderLine(line string) bool { |
|
1037
|
|
|
return strings.Contains(line, "CVEs : ") |
|
1038
|
|
|
} |
|
1039
|
|
|
|
|
1040
|
|
|
var yumCveIDPattern = regexp.MustCompile(`(CVE-\d{4}-\d{4,})`) |
|
1041
|
|
|
|
|
1042
|
|
|
func (o *redhatBase) parseYumUpdateinfoLineToGetCveIDs(line string) []string { |
|
1043
|
|
|
return yumCveIDPattern.FindAllString(line, -1) |
|
1044
|
|
|
} |
|
1045
|
|
|
|
|
1046
|
|
|
var yumAdvisoryIDPattern = regexp.MustCompile(`^ *Update ID : (.*)$`) |
|
1047
|
|
|
|
|
1048
|
|
|
func (o *redhatBase) parseYumUpdateinfoToGetAdvisoryID(line string) (advisoryID string, found bool) { |
|
1049
|
|
|
result := yumAdvisoryIDPattern.FindStringSubmatch(line) |
|
1050
|
|
|
if len(result) != 2 { |
|
1051
|
|
|
return "", false |
|
1052
|
|
|
} |
|
1053
|
|
|
return strings.TrimSpace(result[1]), true |
|
1054
|
|
|
} |
|
1055
|
|
|
|
|
1056
|
|
|
var yumIssuedPattern = regexp.MustCompile(`^\s*Issued : (\d{4}-\d{2}-\d{2})`) |
|
1057
|
|
|
|
|
1058
|
|
|
func (o *redhatBase) parseYumUpdateinfoLineToGetIssued(line string) (date time.Time, found bool) { |
|
1059
|
|
|
return o.parseYumUpdateinfoLineToGetDate(line, yumIssuedPattern) |
|
1060
|
|
|
} |
|
1061
|
|
|
|
|
1062
|
|
|
var yumUpdatedPattern = regexp.MustCompile(`^\s*Updated : (\d{4}-\d{2}-\d{2})`) |
|
1063
|
|
|
|
|
1064
|
|
|
func (o *redhatBase) parseYumUpdateinfoLineToGetUpdated(line string) (date time.Time, found bool) { |
|
1065
|
|
|
return o.parseYumUpdateinfoLineToGetDate(line, yumUpdatedPattern) |
|
1066
|
|
|
} |
|
1067
|
|
|
|
|
1068
|
|
|
func (o *redhatBase) parseYumUpdateinfoLineToGetDate(line string, regexpPattern *regexp.Regexp) (date time.Time, found bool) { |
|
1069
|
|
|
result := regexpPattern.FindStringSubmatch(line) |
|
1070
|
|
|
if len(result) != 2 { |
|
1071
|
|
|
return date, false |
|
1072
|
|
|
} |
|
1073
|
|
|
t, err := time.Parse("2006-01-02", result[1]) |
|
1074
|
|
|
if err != nil { |
|
1075
|
|
|
return date, false |
|
1076
|
|
|
} |
|
1077
|
|
|
return t, true |
|
1078
|
|
|
} |
|
1079
|
|
|
|
|
1080
|
|
|
var yumDescriptionPattern = regexp.MustCompile(`^\s*Description : `) |
|
1081
|
|
|
|
|
1082
|
|
|
func (o *redhatBase) isDescriptionLine(line string) bool { |
|
1083
|
|
|
return yumDescriptionPattern.MatchString(line) |
|
1084
|
|
|
} |
|
1085
|
|
|
|
|
1086
|
|
|
var yumSeverityPattern = regexp.MustCompile(`^ *Severity : (.*)$`) |
|
1087
|
|
|
|
|
1088
|
|
|
func (o *redhatBase) parseYumUpdateinfoToGetSeverity(line string) (severity string, found bool) { |
|
1089
|
|
|
result := yumSeverityPattern.FindStringSubmatch(line) |
|
1090
|
|
|
if len(result) != 2 { |
|
1091
|
|
|
return "", false |
|
1092
|
|
|
} |
|
1093
|
|
|
return strings.TrimSpace(result[1]), true |
|
1094
|
|
|
} |
|
1095
|
|
|
|
|
1096
|
|
|
type advisoryIDPacks struct { |
|
1097
|
|
|
AdvisoryID string |
|
1098
|
|
|
PackNames []string |
|
1099
|
|
|
} |
|
1100
|
|
|
|
|
1101
|
|
|
type advisoryIDPacksList []advisoryIDPacks |
|
1102
|
|
|
|
|
1103
|
|
|
func (list advisoryIDPacksList) find(advisoryID string) (advisoryIDPacks, bool) { |
|
1104
|
|
|
for _, a := range list { |
|
1105
|
|
|
if a.AdvisoryID == advisoryID { |
|
1106
|
|
|
return a, true |
|
1107
|
|
|
} |
|
1108
|
|
|
} |
|
1109
|
|
|
return advisoryIDPacks{}, false |
|
1110
|
|
|
} |
|
1111
|
|
|
func (o *redhatBase) extractPackNameVerRel(nameVerRel string) (name, ver, rel string) { |
|
1112
|
|
|
fields := strings.Split(nameVerRel, ".") |
|
1113
|
|
|
archTrimed := strings.Join(fields[0:len(fields)-1], ".") |
|
1114
|
|
|
|
|
1115
|
|
|
fields = strings.Split(archTrimed, "-") |
|
1116
|
|
|
rel = fields[len(fields)-1] |
|
1117
|
|
|
ver = fields[len(fields)-2] |
|
1118
|
|
|
name = strings.Join(fields[0:(len(fields)-2)], "-") |
|
1119
|
|
|
return |
|
1120
|
|
|
} |
|
1121
|
|
|
|
|
1122
|
|
|
// parseYumUpdateinfoListAvailable collect AdvisorID(RHSA, ALAS, ELSA), packages |
|
1123
|
|
|
func (o *redhatBase) parseYumUpdateinfoListAvailable(stdout string) (advisoryIDPacksList, error) { |
|
1124
|
|
|
result := []advisoryIDPacks{} |
|
1125
|
|
|
lines := strings.Split(stdout, "\n") |
|
1126
|
|
|
for _, line := range lines { |
|
1127
|
|
|
|
|
1128
|
|
|
if !(strings.HasPrefix(line, "RHSA") || |
|
1129
|
|
|
strings.HasPrefix(line, "ALAS") || |
|
1130
|
|
|
strings.HasPrefix(line, "ELSA")) { |
|
1131
|
|
|
continue |
|
1132
|
|
|
} |
|
1133
|
|
|
|
|
1134
|
|
|
fields := strings.Fields(line) |
|
1135
|
|
|
if len(fields) != 3 { |
|
1136
|
|
|
return []advisoryIDPacks{}, xerrors.Errorf( |
|
1137
|
|
|
"Unknown format. line: %s", line) |
|
1138
|
|
|
} |
|
1139
|
|
|
|
|
1140
|
|
|
// extract fields |
|
1141
|
|
|
advisoryID := fields[0] |
|
1142
|
|
|
packVersion := fields[2] |
|
1143
|
|
|
packName, _, _ := o.extractPackNameVerRel(packVersion) |
|
1144
|
|
|
|
|
1145
|
|
|
found := false |
|
1146
|
|
|
for i, s := range result { |
|
1147
|
|
|
if s.AdvisoryID == advisoryID { |
|
1148
|
|
|
names := s.PackNames |
|
1149
|
|
|
names = append(names, packName) |
|
1150
|
|
|
result[i].PackNames = names |
|
1151
|
|
|
found = true |
|
1152
|
|
|
break |
|
1153
|
|
|
} |
|
1154
|
|
|
} |
|
1155
|
|
|
if !found { |
|
1156
|
|
|
result = append(result, advisoryIDPacks{ |
|
1157
|
|
|
AdvisoryID: advisoryID, |
|
1158
|
|
|
PackNames: []string{packName}, |
|
1159
|
|
|
}) |
|
1160
|
|
|
} |
|
1161
|
|
|
} |
|
1162
|
|
|
return result, nil |
|
1163
|
|
|
} |
|
1164
|
|
|
|
|
1165
|
|
|
func (o *redhatBase) yumPS() error { |
|
1166
|
|
|
cmd := "LANGUAGE=en_US.UTF-8 yum info yum" |
|
1167
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), noSudo) |
|
1168
|
|
|
if !r.isSuccess() { |
|
1169
|
|
|
return xerrors.Errorf("Failed to SSH: %s", r) |
|
1170
|
|
|
} |
|
1171
|
|
|
if !o.checkYumPsInstalled(r.Stdout) { |
|
1172
|
|
|
switch o.Distro.Family { |
|
1173
|
|
|
case config.RedHat, config.Oracle: |
|
1174
|
|
|
return nil |
|
1175
|
|
|
default: |
|
1176
|
|
|
return xerrors.New("yum-plugin-ps is not installed") |
|
1177
|
|
|
} |
|
1178
|
|
|
} |
|
1179
|
|
|
|
|
1180
|
|
|
cmd = "LANGUAGE=en_US.UTF-8 yum -q ps all --color=never" |
|
1181
|
|
|
r = o.exec(util.PrependProxyEnv(cmd), sudo) |
|
1182
|
|
|
if !r.isSuccess() { |
|
1183
|
|
|
return xerrors.Errorf("Failed to SSH: %s", r) |
|
1184
|
|
|
} |
|
1185
|
|
|
packs := o.parseYumPS(r.Stdout) |
|
1186
|
|
|
for name, pack := range packs { |
|
1187
|
|
|
p := o.Packages[name] |
|
1188
|
|
|
p.AffectedProcs = pack.AffectedProcs |
|
1189
|
|
|
o.Packages[name] = p |
|
1190
|
|
|
} |
|
1191
|
|
|
return nil |
|
1192
|
|
|
} |
|
1193
|
|
|
|
|
1194
|
|
|
func (o *redhatBase) checkYumPsInstalled(stdout string) bool { |
|
1195
|
|
|
scanner := bufio.NewScanner(strings.NewReader(stdout)) |
|
1196
|
|
|
for scanner.Scan() { |
|
1197
|
|
|
line := strings.TrimSpace(scanner.Text()) |
|
1198
|
|
|
if strings.HasPrefix(line, "Loaded plugins: ") { |
|
1199
|
|
|
if strings.Contains(line, " ps,") || strings.HasSuffix(line, " ps") { |
|
1200
|
|
|
return true |
|
1201
|
|
|
} |
|
1202
|
|
|
return false |
|
1203
|
|
|
} |
|
1204
|
|
|
} |
|
1205
|
|
|
return false |
|
1206
|
|
|
} |
|
1207
|
|
|
|
|
1208
|
|
|
func (o *redhatBase) parseYumPS(stdout string) models.Packages { |
|
1209
|
|
|
packs := models.Packages{} |
|
1210
|
|
|
scanner := bufio.NewScanner(strings.NewReader(stdout)) |
|
1211
|
|
|
isPackageLine, needToParseProcline := false, false |
|
1212
|
|
|
currentPackName := "" |
|
1213
|
|
|
for scanner.Scan() { |
|
1214
|
|
|
line := scanner.Text() |
|
1215
|
|
|
fields := strings.Fields(line) |
|
1216
|
|
|
if len(fields) == 0 || |
|
1217
|
|
|
len(fields) == 1 && fields[0] == "ps" || |
|
1218
|
|
|
len(fields) == 6 && fields[0] == "pid" { |
|
1219
|
|
|
continue |
|
1220
|
|
|
} |
|
1221
|
|
|
|
|
1222
|
|
|
isPackageLine = !strings.HasPrefix(line, " ") |
|
1223
|
|
|
if isPackageLine { |
|
1224
|
|
|
if 1 < len(fields) && fields[1] == "Upgrade" { |
|
1225
|
|
|
needToParseProcline = true |
|
1226
|
|
|
|
|
1227
|
|
|
// Search o.Packages to divide into name, version, release |
|
1228
|
|
|
name, pack, found := o.Packages.FindOne(func(p models.Package) bool { |
|
1229
|
|
|
var epochNameVerRel string |
|
1230
|
|
|
if index := strings.Index(p.Version, ":"); 0 < index { |
|
1231
|
|
|
epoch := p.Version[0:index] |
|
1232
|
|
|
ver := p.Version[index+1 : len(p.Version)] |
|
1233
|
|
|
epochNameVerRel = fmt.Sprintf("%s:%s-%s-%s.%s", |
|
1234
|
|
|
epoch, p.Name, ver, p.Release, p.Arch) |
|
1235
|
|
|
} else { |
|
1236
|
|
|
epochNameVerRel = fmt.Sprintf("%s-%s-%s.%s", |
|
1237
|
|
|
p.Name, p.Version, p.Release, p.Arch) |
|
1238
|
|
|
} |
|
1239
|
|
|
return strings.HasPrefix(fields[0], epochNameVerRel) |
|
1240
|
|
|
}) |
|
1241
|
|
|
if !found { |
|
1242
|
|
|
o.log.Errorf("`yum ps` package is not found: %s", line) |
|
1243
|
|
|
continue |
|
1244
|
|
|
} |
|
1245
|
|
|
packs[name] = pack |
|
1246
|
|
|
currentPackName = name |
|
1247
|
|
|
} else { |
|
1248
|
|
|
needToParseProcline = false |
|
1249
|
|
|
} |
|
1250
|
|
|
} else if needToParseProcline { |
|
1251
|
|
|
if 6 < len(fields) { |
|
1252
|
|
|
proc := models.AffectedProcess{ |
|
1253
|
|
|
PID: fields[0], |
|
1254
|
|
|
Name: fields[1], |
|
1255
|
|
|
} |
|
1256
|
|
|
pack := packs[currentPackName] |
|
1257
|
|
|
pack.AffectedProcs = append(pack.AffectedProcs, proc) |
|
1258
|
|
|
packs[currentPackName] = pack |
|
1259
|
|
|
} else { |
|
1260
|
|
|
o.log.Errorf("`yum ps` Unknown Format: %s", line) |
|
1261
|
|
|
continue |
|
1262
|
|
|
} |
|
1263
|
|
|
} |
|
1264
|
|
|
} |
|
1265
|
|
|
return packs |
|
1266
|
|
|
} |
|
1267
|
|
|
|
|
1268
|
|
|
func (o *redhatBase) needsRestarting() error { |
|
1269
|
|
|
initName, err := o.detectInitSystem() |
|
1270
|
|
|
if err != nil { |
|
1271
|
|
|
o.log.Warn(err) |
|
1272
|
|
|
// continue scanning |
|
1273
|
|
|
} |
|
1274
|
|
|
|
|
1275
|
|
|
cmd := "LANGUAGE=en_US.UTF-8 needs-restarting" |
|
1276
|
|
|
r := o.exec(cmd, sudo) |
|
1277
|
|
|
if !r.isSuccess() { |
|
1278
|
|
|
return xerrors.Errorf("Failed to SSH: %s", r) |
|
1279
|
|
|
} |
|
1280
|
|
|
procs := o.parseNeedsRestarting(r.Stdout) |
|
1281
|
|
|
for _, proc := range procs { |
|
1282
|
|
|
fqpn, err := o.procPathToFQPN(proc.Path) |
|
1283
|
|
|
if err != nil { |
|
1284
|
|
|
o.log.Warnf("Failed to detect a package name of need restarting process from the command path: %s, %s", |
|
1285
|
|
|
proc.Path, err) |
|
1286
|
|
|
continue |
|
1287
|
|
|
} |
|
1288
|
|
|
pack, err := o.Packages.FindByFQPN(fqpn) |
|
1289
|
|
|
if err != nil { |
|
1290
|
|
|
return err |
|
1291
|
|
|
} |
|
1292
|
|
|
if initName == systemd { |
|
1293
|
|
|
name, err := o.detectServiceName(proc.PID) |
|
1294
|
|
|
if err != nil { |
|
1295
|
|
|
o.log.Warn(err) |
|
1296
|
|
|
// continue scanning |
|
1297
|
|
|
} |
|
1298
|
|
|
proc.ServiceName = name |
|
1299
|
|
|
proc.InitSystem = systemd |
|
1300
|
|
|
} |
|
1301
|
|
|
pack.NeedRestartProcs = append(pack.NeedRestartProcs, proc) |
|
1302
|
|
|
o.Packages[pack.Name] = *pack |
|
1303
|
|
|
} |
|
1304
|
|
|
return nil |
|
1305
|
|
|
} |
|
1306
|
|
|
|
|
1307
|
|
|
func (o *redhatBase) parseNeedsRestarting(stdout string) (procs []models.NeedRestartProcess) { |
|
1308
|
|
|
scanner := bufio.NewScanner(strings.NewReader(stdout)) |
|
1309
|
|
|
for scanner.Scan() { |
|
1310
|
|
|
line := scanner.Text() |
|
1311
|
|
|
line = strings.Replace(line, "\x00", " ", -1) // for CentOS6.9 |
|
1312
|
|
|
ss := strings.Split(line, " : ") |
|
1313
|
|
|
if len(ss) < 2 { |
|
1314
|
|
|
continue |
|
1315
|
|
|
} |
|
1316
|
|
|
// https://unix.stackexchange.com/a/419375 |
|
1317
|
|
|
if ss[0] == "1" { |
|
1318
|
|
|
continue |
|
1319
|
|
|
} |
|
1320
|
|
|
|
|
1321
|
|
|
path := ss[1] |
|
1322
|
|
|
if !strings.HasPrefix(path, "/") { |
|
1323
|
|
|
path = strings.Fields(path)[0] |
|
1324
|
|
|
// [ec2-user@ip-172-31-11-139 ~]$ sudo needs-restarting |
|
1325
|
|
|
// 2024 : auditd |
|
1326
|
|
|
// [ec2-user@ip-172-31-11-139 ~]$ type -p auditd |
|
1327
|
|
|
// /sbin/auditd |
|
1328
|
|
|
cmd := fmt.Sprintf("LANGUAGE=en_US.UTF-8 which %s", path) |
|
1329
|
|
|
r := o.exec(cmd, sudo) |
|
1330
|
|
|
if !r.isSuccess() { |
|
1331
|
|
|
o.log.Warnf("Failed to exec which %s: %s", path, r) |
|
1332
|
|
|
continue |
|
1333
|
|
|
} |
|
1334
|
|
|
path = strings.TrimSpace(r.Stdout) |
|
1335
|
|
|
} |
|
1336
|
|
|
|
|
1337
|
|
|
procs = append(procs, models.NeedRestartProcess{ |
|
1338
|
|
|
PID: ss[0], |
|
1339
|
|
|
Path: path, |
|
1340
|
|
|
HasInit: true, |
|
1341
|
|
|
}) |
|
1342
|
|
|
} |
|
1343
|
|
|
return |
|
1344
|
|
|
} |
|
1345
|
|
|
|
|
1346
|
|
|
// procPathToFQPN returns Fully-Qualified-Package-Name from the command |
|
1347
|
|
|
func (o *redhatBase) procPathToFQPN(execCommand string) (string, error) { |
|
1348
|
|
|
execCommand = strings.Replace(execCommand, "\x00", " ", -1) // for CentOS6.9 |
|
1349
|
|
|
path := strings.Fields(execCommand)[0] |
|
1350
|
|
|
cmd := `LANGUAGE=en_US.UTF-8 rpm -qf --queryformat "%{NAME}-%{EPOCH}:%{VERSION}-%{RELEASE}.%{ARCH}\n" ` + path |
|
1351
|
|
|
r := o.exec(cmd, noSudo) |
|
1352
|
|
|
if !r.isSuccess() { |
|
1353
|
|
|
return "", xerrors.Errorf("Failed to SSH: %s", r) |
|
1354
|
|
|
} |
|
1355
|
|
|
fqpn := strings.TrimSpace(r.Stdout) |
|
1356
|
|
|
return strings.Replace(fqpn, "-(none):", "-", -1), nil |
|
1357
|
|
|
} |
|
1358
|
|
|
|
|
1359
|
|
|
func (o *redhatBase) hasYumColorOption() bool { |
|
1360
|
|
|
cmd := "yum --help | grep color" |
|
1361
|
|
|
r := o.exec(util.PrependProxyEnv(cmd), noSudo) |
|
1362
|
|
|
return len(r.Stdout) > 0 |
|
1363
|
|
|
} |
|
1364
|
|
|
|
future-architect /
vuls
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