Issues in mctest.php (master) - Issues in master - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

Issues (4122)

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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.

maintenance/mctest.php (1 issue)

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Bug 1

Severity

Major 1

Antoine Musso 1

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<?php
/**
 * Makes several 'set', 'incr' and 'get' requests on every memcached
 * server and shows a report.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Maintenance
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script that  makes several 'set', 'incr' and 'get' requests
 * on every memcached server and shows a report.
 *
 * @ingroup Maintenance
 */
class McTest extends Maintenance {
	public function __construct() {
		parent::__construct();
		$this->addDescription( "Makes several 'set', 'incr' and 'get' requests on every"
			. " memcached server and shows a report" );
		$this->addOption( 'i', 'Number of iterations', false, true );
		$this->addOption( 'cache', 'Use servers from this $wgObjectCaches store', false, true );
		$this->addArg( 'server[:port]', 'Memcached server to test, with optional port', false );
	}

	public function execute() {
		global $wgMainCacheType, $wgMemCachedTimeout, $wgObjectCaches;

		$cache = $this->getOption( 'cache' );
		$iterations = $this->getOption( 'i', 100 );
		if ( $cache ) {
			if ( !isset( $wgObjectCaches[$cache] ) ) {
				$this->error( "MediaWiki isn't configured with a cache named '$cache'", 1 );
			}
			$servers = $wgObjectCaches[$cache]['servers'];
		} elseif ( $this->hasArg() ) {
			$servers = [ $this->getArg() ];
		} elseif ( $wgMainCacheType === CACHE_MEMCACHED ) {
			global $wgMemCachedServers;
			$servers = $wgMemCachedServers;
		} elseif ( isset( $wgObjectCaches[$wgMainCacheType]['servers'] ) ) {
			$servers = $wgObjectCaches[$wgMainCacheType]['servers'];
		} else {
			$this->error( "MediaWiki isn't configured for Memcached usage", 1 );
		}

		# find out the longest server string to nicely align output later on
		$maxSrvLen = $servers ? max( array_map( 'strlen', $servers ) ) : 0;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

		foreach ( $servers as $server ) {
			$this->output(
				str_pad( $server, $maxSrvLen ),
				$server # output channel
			);

			$mcc = new MemcachedClient( [
				'persistant' => true,
				'timeout' => $wgMemCachedTimeout
			] );
			$mcc->set_servers( [ $server ] );
			$set = 0;
			$incr = 0;
			$get = 0;
			$time_start = microtime( true );
			for ( $i = 1; $i <= $iterations; $i++ ) {
				if ( $mcc->set( "test$i", $i ) ) {
					$set++;
				}
			}
			for ( $i = 1; $i <= $iterations; $i++ ) {
				if ( !is_null( $mcc->incr( "test$i", $i ) ) ) {
					$incr++;
				}
			}
			for ( $i = 1; $i <= $iterations; $i++ ) {
				$value = $mcc->get( "test$i" );
				if ( $value == $i * 2 ) {
					$get++;
				}
			}
			$exectime = microtime( true ) - $time_start;

			$this->output( " set: $set   incr: $incr   get: $get time: $exectime", $server );
		}
	}
}

$maintClass = "McTest";
require_once RUN_MAINTENANCE_IF_MAIN;


1		<?php
2		/**
3		* Makes several 'set', 'incr' and 'get' requests on every memcached
4		* server and shows a report.
5		*
6		* This program is free software; you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
8		* the Free Software Foundation; either version 2 of the License, or
9		* (at your option) any later version.
10		*
11		* This program is distributed in the hope that it will be useful,
12		* but WITHOUT ANY WARRANTY; without even the implied warranty of
13		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14		* GNU General Public License for more details.
15		*
16		* You should have received a copy of the GNU General Public License along
17		* with this program; if not, write to the Free Software Foundation, Inc.,
18		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19		* http://www.gnu.org/copyleft/gpl.html
20		*
21		* @file
22		* @ingroup Maintenance
23		*/
24
25		require_once __DIR__ . '/Maintenance.php';
26
27		/**
28		* Maintenance script that makes several 'set', 'incr' and 'get' requests
29		* on every memcached server and shows a report.
30		*
31		* @ingroup Maintenance
32		*/
33		class McTest extends Maintenance {
34		public function __construct() {
35		parent::__construct();
36		$this->addDescription( "Makes several 'set', 'incr' and 'get' requests on every"
37		. " memcached server and shows a report" );
38		$this->addOption( 'i', 'Number of iterations', false, true );
39		$this->addOption( 'cache', 'Use servers from this $wgObjectCaches store', false, true );
40		$this->addArg( 'server[:port]', 'Memcached server to test, with optional port', false );
41		}
42
43		public function execute() {
44		global $wgMainCacheType, $wgMemCachedTimeout, $wgObjectCaches;
45
46		$cache = $this->getOption( 'cache' );
47		$iterations = $this->getOption( 'i', 100 );
48		if ( $cache ) {
49		if ( !isset( $wgObjectCaches[$cache] ) ) {
50		$this->error( "MediaWiki isn't configured with a cache named '$cache'", 1 );
51		}
52		$servers = $wgObjectCaches[$cache]['servers'];
53		} elseif ( $this->hasArg() ) {
54		$servers = [ $this->getArg() ];
55		} elseif ( $wgMainCacheType === CACHE_MEMCACHED ) {
56		global $wgMemCachedServers;
57		$servers = $wgMemCachedServers;
58		} elseif ( isset( $wgObjectCaches[$wgMainCacheType]['servers'] ) ) {
59		$servers = $wgObjectCaches[$wgMainCacheType]['servers'];
60		} else {
61		$this->error( "MediaWiki isn't configured for Memcached usage", 1 );
62		}
63
64		# find out the longest server string to nicely align output later on
65		$maxSrvLen = $servers ? max( array_map( 'strlen', $servers ) ) : 0;
		0 ignored issues – show Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `$servers` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
66
67		foreach ( $servers as $server ) {
68		$this->output(
69		str_pad( $server, $maxSrvLen ),
70		$server # output channel
71		);
72
73		$mcc = new MemcachedClient( [
74		'persistant' => true,
75		'timeout' => $wgMemCachedTimeout
76		] );
77		$mcc->set_servers( [ $server ] );
78		$set = 0;
79		$incr = 0;
80		$get = 0;
81		$time_start = microtime( true );
82	View Code Duplication	for ( $i = 1; $i <= $iterations; $i++ ) {
83		if ( $mcc->set( "test$i", $i ) ) {
84		$set++;
85		}
86		}
87	View Code Duplication	for ( $i = 1; $i <= $iterations; $i++ ) {
88		if ( !is_null( $mcc->incr( "test$i", $i ) ) ) {
89		$incr++;
90		}
91		}
92	View Code Duplication	for ( $i = 1; $i <= $iterations; $i++ ) {
93		$value = $mcc->get( "test$i" );
94		if ( $value == $i * 2 ) {
95		$get++;
96		}
97		}
98		$exectime = microtime( true ) - $time_start;
99
100		$this->output( " set: $set incr: $incr get: $get time: $exectime", $server );
101		}
102		}
103		}
104
105		$maintClass = "McTest";
106		require_once RUN_MAINTENANCE_IF_MAIN;
107

wikimedia / mediawiki

Issues (4122)

Security Analysis not enabled

maintenance/mctest.php (1 issue)

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