Issues in Parser.php (master) - Issues in master - phpoxford/spires - Measure and Improve Code Quality continuously with Scrutinizer

Issues (15)

Security Analysis no request data

Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

src/Irc/Parser.php (3 issues)

Labels

Severity

Minor 3

Upgrade to new PHP Analysis Engine

These results are based on our legacy PHP analysis, consider migrating to our new PHP analysis engine instead. Learn more

<?php
declare(strict_types=1);

namespace Spires\Irc;

class Parser
{
    /**
     * Parse a raw message following the message format defined in
     * RFC 2812 for the Internet Relay Chat: Client Protocol
     * http://tools.ietf.org/html/rfc2812#section-2.3.1
     *
     * @param string $raw
     * @return array
     */
    public function parse(string $raw): array
    {
        // =  %x0D %x0A   ; "carriage return" "linefeed"
        $crlf = '\r\n';

        // =  %x41-5A / %x61-7A  ; A-Z / a-z
        $letter = 'A-Z|a-z';

        // =  %x30-39   ; 0-9
        $digit = '0-9';

        // =  digit / "A" / "B" / "C" / "D" / "E" / "F"
        $hexdigit = "$digit|a-f|A-F";

        // =  %x5B-60 / %x7B-7D   ; "[", "]", "\", "`", "_", "^", "{", "|", "}"

        $special = '\x5B-\x60|\x7B-\x7D';

        // =  %x01-09 / %x0B-0C / %x0E-1F / %x21-39 / %x3B-FF   ; any octet except NUL, CR, LF, " " and ":"
        $nospcrlfcl = '\x01-\x09|\x0B-\x0C|\x0E-\x1F|\x21-\x39|\x3B-\xFF';

        // =  %x20   ; space character
        $space = '\x20';

        // Variables to make the following regular expressions easier to follow
        $colon = ':';
        $bang = '!';
        $at = '@';
        $dash = '-';
        $slash = '\/';
        $dot = '\.';

        // =  1*letter / 3digit
        $command = "(?:[$letter]+|[$digit]{3})";

        // =  nospcrlfcl *( ":" / nospcrlfcl )
        $middle = "(?:[$nospcrlfcl][$colon|$nospcrlfcl]*)";

        // =  *( ":" / " " / nospcrlfcl )
        $trailing = "(?:[$colon|$space|$nospcrlfcl]*)";

        // =  *14( SPACE middle ) [ SPACE ":" trailing ]
        // =/ 14( SPACE middle ) [ SPACE [ ":" ] trailing ]
        $params = "(?:(?:$space$middle){0,14}(?:$space$colon$trailing)?" .
            "|(?:$space$middle){14}(?:$space(?:$colon)?$trailing)?)";

        // =  ( letter / digit ) *( letter / digit / "-" ) *( letter / digit )
        $shortname = "(?:[$letter$digit][$letter$digit$dash$slash]*[$letter$digit]*)";

        // =  shortname *( "." shortname )
        $hostname = "(?:$shortname(?:$dot$shortname)*)";

        // =  hostname
        $servername = "$hostname";

        // =  1*3digit "." 1*3digit "." 1*3digit "." 1*3digit

        $ip4addr = "(?:(?:[$digit]{1,3})$dot(?:[$digit]{1,3})$dot(?:[$digit]{1,3})$dot(?:[$digit]{1,3}))";

        // =  1*hexdigit 7( ":" 1*hexdigit )

        // =/ "0:0:0:0:0:" ( "0" / "FFFF" ) ":" ip4addr
        $ip6addr = "(?:(?:[$hexdigit]+?(?:$colon(?:[$hexdigit]+?)){7})|(?:0:0:0:0:0:(?:0|FFFF)$colon$ip4addr))";

        // =  ip4addr / ip6addr
        $hostaddr = "(?:$ip4addr|$ip6addr)";

        // =  hostname / hostaddr
        $host = "(?:$hostname|$hostaddr)";

        // =  ( letter / special ) *8( letter / digit / special / "-" )
        //  * While the maximum length is limited to nine characters, clients
        //  * SHOULD accept longer strings as they may become used in future
        //  * evolutions of the protocol.
        //  * https://tools.ietf.org/html/rfc2812#section-1.2.1
        $nickname = "(?:[$letter$special][$letter$digit$special$dash]*)";

        // =  1*( %x01-09 / %x0B-0C / %x0E-1F / %x21-3F / %x41-FF )   ; any octet except NUL, CR, LF, " " and "@"
        $user = "(?:[\x01-\x09|\x0B-\x0C|\x0E-\x1F|\x21-\x3F|\x41-\xFF]+)";

        // =  servername / ( nickname [ [ "!" user ] "@" host ] )
        $prefix = "(?:(?P<servername>$servername)" .
            "|(?:(?P<nickname>$nickname)(?:$bang(?P<username>$user))?(?:$at(?P<hostname>$host))?))";

        // =  [ ":" prefix SPACE ] command [ params ] crlf
        $message = "(?P<prefix>$colon$prefix$space)?(?P<command>$command)(?P<params>$params)?$crlf";

        // Do the thing
        preg_match("/^$message\$/SU", $raw, $matches);

        // Trim whitespace
        $matches = array_map('trim', $matches);

        // Return only the named matches we want in the order we want
        return [
            'nickname' => $matches['nickname'] ?? '',
            'username' => $matches['username'] ?? '',
            'hostname' => $matches['hostname'] ?? '',
            'serverName' => $matches['serverName'] ?? '',
            'command' => $matches['command'] ?? '',
            'params' => $matches['params'] ?? '',
        ];
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace Spires\Irc;
5
6			class Parser
7			{
8			/**
9			* Parse a raw message following the message format defined in
10			* RFC 2812 for the Internet Relay Chat: Client Protocol
11			* http://tools.ietf.org/html/rfc2812#section-2.3.1
12			*
13			* @param string $raw
14			* @return array
15			*/
16			public function parse(string $raw): array
17			{
18			// = %x0D %x0A ; "carriage return" "linefeed"
19			$crlf = '\r\n';
20
21			// = %x41-5A / %x61-7A ; A-Z / a-z
22			$letter = 'A-Z\|a-z';
23
24			// = %x30-39 ; 0-9
25			$digit = '0-9';
26
27			// = digit / "A" / "B" / "C" / "D" / "E" / "F"
28			$hexdigit = "$digit\|a-f\|A-F";
29
30			// = %x5B-60 / %x7B-7D ; "[", "]", "\", "`", "_", "^", "{", "\|", "}"
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-07-27 19:40 UTC by Report Bug Copy Issue Report Show Similar Issues like this `47%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
31			$special = '\x5B-\x60\|\x7B-\x7D';
32
33			// = %x01-09 / %x0B-0C / %x0E-1F / %x21-39 / %x3B-FF ; any octet except NUL, CR, LF, " " and ":"
34			$nospcrlfcl = '\x01-\x09\|\x0B-\x0C\|\x0E-\x1F\|\x21-\x39\|\x3B-\xFF';
35
36			// = %x20 ; space character
37			$space = '\x20';
38
39			// Variables to make the following regular expressions easier to follow
40			$colon = ':';
41			$bang = '!';
42			$at = '@';
43			$dash = '-';
44			$slash = '\/';
45			$dot = '\.';
46
47			// = 1*letter / 3digit
48			$command = "(?:[$letter]+\|[$digit]{3})";
49
50			// = nospcrlfcl *( ":" / nospcrlfcl )
51			$middle = "(?:[$nospcrlfcl][$colon\|$nospcrlfcl]*)";
52
53			// = *( ":" / " " / nospcrlfcl )
54			$trailing = "(?:[$colon\|$space\|$nospcrlfcl]*)";
55
56			// = *14( SPACE middle ) [ SPACE ":" trailing ]
57			// =/ 14( SPACE middle ) [ SPACE [ ":" ] trailing ]
58			$params = "(?:(?:$space$middle){0,14}(?:$space$colon$trailing)?" .
59			"\|(?:$space$middle){14}(?:$space(?:$colon)?$trailing)?)";
60
61			// = ( letter / digit ) ( letter / digit / "-" ) ( letter / digit )
62			$shortname = "(?:[$letter$digit][$letter$digit$dash$slash][$letter$digit])";
63
64			// = shortname *( "." shortname )
65			$hostname = "(?:$shortname(?:$dot$shortname)*)";
66
67			// = hostname
68			$servername = "$hostname";
69
70			// = 13digit "." 13digit "." 13digit "." 13digit
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-07-27 19:40 UTC by Report Bug Copy Issue Report Show Similar Issues like this `40%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
71			$ip4addr = "(?:(?:[$digit]{1,3})$dot(?:[$digit]{1,3})$dot(?:[$digit]{1,3})$dot(?:[$digit]{1,3}))";
72
73			// = 1hexdigit 7( ":" 1hexdigit )
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-07-27 19:40 UTC by Report Bug Copy Issue Report Show Similar Issues like this `36%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
74			// =/ "0:0:0:0:0:" ( "0" / "FFFF" ) ":" ip4addr
75			$ip6addr = "(?:(?:[$hexdigit]+?(?:$colon(?:[$hexdigit]+?)){7})\|(?:0:0:0:0:0:(?:0\|FFFF)$colon$ip4addr))";
76
77			// = ip4addr / ip6addr
78			$hostaddr = "(?:$ip4addr\|$ip6addr)";
79
80			// = hostname / hostaddr
81			$host = "(?:$hostname\|$hostaddr)";
82
83			// = ( letter / special ) *8( letter / digit / special / "-" )
84			// * While the maximum length is limited to nine characters, clients
85			// * SHOULD accept longer strings as they may become used in future
86			// * evolutions of the protocol.
87			// * https://tools.ietf.org/html/rfc2812#section-1.2.1
88			$nickname = "(?:[$letter$special][$letter$digit$special$dash]*)";
89
90			// = 1*( %x01-09 / %x0B-0C / %x0E-1F / %x21-3F / %x41-FF ) ; any octet except NUL, CR, LF, " " and "@"
91			$user = "(?:[\x01-\x09\|\x0B-\x0C\|\x0E-\x1F\|\x21-\x3F\|\x41-\xFF]+)";
92
93			// = servername / ( nickname [ [ "!" user ] "@" host ] )
94			$prefix = "(?:(?P<servername>$servername)" .
95			"\|(?:(?P<nickname>$nickname)(?:$bang(?P<username>$user))?(?:$at(?P<hostname>$host))?))";
96
97			// = [ ":" prefix SPACE ] command [ params ] crlf
98			$message = "(?P<prefix>$colon$prefix$space)?(?P<command>$command)(?P<params>$params)?$crlf";
99
100			// Do the thing
101			preg_match("/^$message\$/SU", $raw, $matches);
102
103			// Trim whitespace
104			$matches = array_map('trim', $matches);
105
106			// Return only the named matches we want in the order we want
107			return [
108			'nickname' => $matches['nickname'] ?? '',
109			'username' => $matches['username'] ?? '',
110			'hostname' => $matches['hostname'] ?? '',
111			'serverName' => $matches['serverName'] ?? '',
112			'command' => $matches['command'] ?? '',
113			'params' => $matches['params'] ?? '',
114			];
115			}
116			}
117

phpoxford / spires

Issues (15)

Security Analysis no request data

src/Irc/Parser.php (3 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

Duplication Side-by-Side

Filter issues like