Issues in getConfiguration.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/getConfiguration.php (2 issues)

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Antoine Musso 2

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<?php
/**
 * Print serialized output of MediaWiki config vars.
 *
 * 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
 * @author Tim Starling
 * @author Antoine Musso <[email protected]>
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Print serialized output of MediaWiki config vars
 *
 * @ingroup Maintenance
 */
class GetConfiguration extends Maintenance {

	protected $regex = null;

	protected $settings_list = [];

	/**
	 * List of format output internally supported.
	 * Each item MUST be lower case.
	 */
	protected static $outFormats = [
		'json',
		'php',
		'serialize',
		'vardump',
	];

	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Get serialized MediaWiki site configuration' );
		$this->addOption( 'regex', 'regex to filter variables with', false, true );
		$this->addOption( 'iregex', 'same as --regex but case insensitive', false, true );
		$this->addOption( 'settings', 'Space-separated list of wg* variables', false, true );
		$this->addOption( 'format', implode( ', ', self::$outFormats ), false, true );
	}

	protected function validateParamsAndArgs() {
		$error_out = false;

		# Get the format and make sure it is set to a valid default value
		$format = strtolower( $this->getOption( 'format', 'PHP' ) );

		$validFormat = in_array( $format, self::$outFormats );
		if ( !$validFormat ) {
			$this->error( "--format set to an unrecognized format", 0 );
			$error_out = true;
		}

		if ( $this->getOption( 'regex' ) && $this->getOption( 'iregex' ) ) {
			$this->error( "Can only use either --regex or --iregex" );
			$error_out = true;
		}

		parent::validateParamsAndArgs();

		if ( $error_out ) {
			# Force help and quit
			$this->maybeHelp( true );
		}
	}

	/**
	 * finalSetup() since we need MWException
	 */
	public function finalSetup() {
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
		parent::finalSetup();

		$this->regex = $this->getOption( 'regex' ) ?: $this->getOption( 'iregex' );
		if ( $this->regex ) {
			$this->regex = '/' . $this->regex . '/';
			if ( $this->hasOption( 'iregex' ) ) {
				$this->regex .= 'i'; # case insensitive regex
			}
		}

		if ( $this->hasOption( 'settings' ) ) {
			$this->settings_list = explode( ' ', $this->getOption( 'settings' ) );
			# Values validation
			foreach ( $this->settings_list as $name ) {
				if ( !preg_match( '/^wg[A-Z]/', $name ) ) {
					throw new MWException( "Variable '$name' does start with 'wg'." );
				} elseif ( !isset( $GLOBALS[$name] ) ) {
					throw new MWException( "Variable '$name' is not set." );
				} elseif ( !$this->isAllowedVariable( $GLOBALS[$name] ) ) {
					throw new MWException( "Variable '$name' includes non-array, non-scalar, items." );
				}
			}
		}
	}

	public function execute() {
		// Settings we will display
		$res = [];

		# Sane default: dump any wg / wmg variable
		if ( !$this->regex && !$this->getOption( 'settings' ) ) {
			$this->regex = '/^wm?g/';
		}

		# Filter out globals based on the regex
		if ( $this->regex ) {
			$res = [];
			foreach ( $GLOBALS as $name => $value ) {
				if ( preg_match( $this->regex, $name ) ) {
					$res[$name] = $value;
				}
			}
		}

		# Explicitly dumps a list of provided global names
		if ( $this->settings_list ) {
			foreach ( $this->settings_list as $name ) {
				$res[$name] = $GLOBALS[$name];
			}
		}

		ksort( $res );

		$out = null;
		switch ( strtolower( $this->getOption( 'format' ) ) ) {
			case 'serialize':
			case 'php':
				$out = serialize( $res );
				break;
			case 'vardump':
				$out = $this->formatVarDump( $res );
				break;
			case 'json':
				$out = FormatJson::encode( $res );
				break;
			default:
				throw new MWException( "Invalid serialization format given." );
		}
		if ( !is_string( $out ) ) {
			throw new MWException( "Failed to serialize the requested settings." );
		}

		if ( $out ) {
			$this->output( $out . "\n" );
		}
	}

	protected function formatVarDump( $res ) {
		$ret = '';
		foreach ( $res as $key => $value ) {
			ob_start(); # intercept var_dump() output
			print "\${$key} = ";
			var_dump( $value );

			# grab var_dump() output and discard it from the output buffer
			$ret .= trim( ob_get_clean() ) . ";\n";
		}

		return trim( $ret, "\n" );
	}

	private function isAllowedVariable( $value ) {
		if ( is_array( $value ) ) {
			foreach ( $value as $k => $v ) {
				if ( !$this->isAllowedVariable( $v ) ) {
					return false;
				}
			}

			return true;
		} elseif ( is_scalar( $value ) || $value === null ) {
			return true;
		}

		return false;
	}
}

$maintClass = "GetConfiguration";
require_once RUN_MAINTENANCE_IF_MAIN;


1			<?php
2			/**
3			* Print serialized output of MediaWiki config vars.
4			*
5			* This program is free software; you can redistribute it and/or modify
6			* it under the terms of the GNU General Public License as published by
7			* the Free Software Foundation; either version 2 of the License, or
8			* (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License along
16			* with this program; if not, write to the Free Software Foundation, Inc.,
17			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18			* http://www.gnu.org/copyleft/gpl.html
19			*
20			* @file
21			* @ingroup Maintenance
22			* @author Tim Starling
23			* @author Antoine Musso <[email protected]>
24			*/
25
26			require_once __DIR__ . '/Maintenance.php';
27
28			/**
29			* Print serialized output of MediaWiki config vars
30			*
31			* @ingroup Maintenance
32			*/
33			class GetConfiguration extends Maintenance {
34
35			protected $regex = null;
36
37			protected $settings_list = [];
38
39			/**
40			* List of format output internally supported.
41			* Each item MUST be lower case.
42			*/
43			protected static $outFormats = [
44			'json',
45			'php',
46			'serialize',
47			'vardump',
48			];
49
50			public function __construct() {
51			parent::__construct();
52			$this->addDescription( 'Get serialized MediaWiki site configuration' );
53			$this->addOption( 'regex', 'regex to filter variables with', false, true );
54			$this->addOption( 'iregex', 'same as --regex but case insensitive', false, true );
55			$this->addOption( 'settings', 'Space-separated list of wg* variables', false, true );
56			$this->addOption( 'format', implode( ', ', self::$outFormats ), false, true );
57			}
58
59			protected function validateParamsAndArgs() {
60			$error_out = false;
61
62			# Get the format and make sure it is set to a valid default value
63			$format = strtolower( $this->getOption( 'format', 'PHP' ) );
64
65			$validFormat = in_array( $format, self::$outFormats );
66			if ( !$validFormat ) {
67			$this->error( "--format set to an unrecognized format", 0 );
68			$error_out = true;
69			}
70
71			if ( $this->getOption( 'regex' ) && $this->getOption( 'iregex' ) ) {
72			$this->error( "Can only use either --regex or --iregex" );
73			$error_out = true;
74			}
75
76			parent::validateParamsAndArgs();
77
78			if ( $error_out ) {
79			# Force help and quit
80			$this->maybeHelp( true );
81			}
82			}
83
84			/**
85			* finalSetup() since we need MWException
86			*/
87			public function finalSetup() {
			0 ignored issues – show Coding Style introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this `finalSetup` uses the super-global variable `$GLOBALS` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
88			parent::finalSetup();
89
90			$this->regex = $this->getOption( 'regex' ) ?: $this->getOption( 'iregex' );
91			if ( $this->regex ) {
92			$this->regex = '/' . $this->regex . '/';
93			if ( $this->hasOption( 'iregex' ) ) {
94			$this->regex .= 'i'; # case insensitive regex
95			}
96			}
97
98			if ( $this->hasOption( 'settings' ) ) {
99			$this->settings_list = explode( ' ', $this->getOption( 'settings' ) );
100			# Values validation
101			foreach ( $this->settings_list as $name ) {
102			if ( !preg_match( '/^wg[A-Z]/', $name ) ) {
103			throw new MWException( "Variable '$name' does start with 'wg'." );
104			} elseif ( !isset( $GLOBALS[$name] ) ) {
105			throw new MWException( "Variable '$name' is not set." );
106			} elseif ( !$this->isAllowedVariable( $GLOBALS[$name] ) ) {
107			throw new MWException( "Variable '$name' includes non-array, non-scalar, items." );
108			}
109			}
110			}
111			}
112
113			public function execute() {
114			// Settings we will display
115			$res = [];
116
117			# Sane default: dump any wg / wmg variable
118			if ( !$this->regex && !$this->getOption( 'settings' ) ) {
119			$this->regex = '/^wm?g/';
120			}
121
122			# Filter out globals based on the regex
123			if ( $this->regex ) {
124			$res = [];
125			foreach ( $GLOBALS as $name => $value ) {
126			if ( preg_match( $this->regex, $name ) ) {
127			$res[$name] = $value;
128			}
129			}
130			}
131
132			# Explicitly dumps a list of provided global names
133			if ( $this->settings_list ) {
134			foreach ( $this->settings_list as $name ) {
135			$res[$name] = $GLOBALS[$name];
136			}
137			}
138
139			ksort( $res );
140
141			$out = null;
142			switch ( strtolower( $this->getOption( 'format' ) ) ) {
143			case 'serialize':
144			case 'php':
145			$out = serialize( $res );
146			break;
147			case 'vardump':
148			$out = $this->formatVarDump( $res );
149			break;
150			case 'json':
151			$out = FormatJson::encode( $res );
152			break;
153			default:
154			throw new MWException( "Invalid serialization format given." );
155			}
156			if ( !is_string( $out ) ) {
157			throw new MWException( "Failed to serialize the requested settings." );
158			}
159
160			if ( $out ) {
161			$this->output( $out . "\n" );
162			}
163			}
164
165			protected function formatVarDump( $res ) {
166			$ret = '';
167			foreach ( $res as $key => $value ) {
168			ob_start(); # intercept var_dump() output
169			print "\${$key} = ";
170			var_dump( $value );
			0 ignored issues – show Security Debugging Code introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report Show Similar Issues like this `var_dump($value);` looks like debug code. Are you sure you do not want to remove it? This might expose sensitive data. Loading history...
171			# grab var_dump() output and discard it from the output buffer
172			$ret .= trim( ob_get_clean() ) . ";\n";
173			}
174
175			return trim( $ret, "\n" );
176			}
177
178			private function isAllowedVariable( $value ) {
179			if ( is_array( $value ) ) {
180			foreach ( $value as $k => $v ) {
181			if ( !$this->isAllowedVariable( $v ) ) {
182			return false;
183			}
184			}
185
186			return true;
187			} elseif ( is_scalar( $value ) \|\| $value === null ) {
188			return true;
189			}
190
191			return false;
192			}
193			}
194
195			$maintClass = "GetConfiguration";
196			require_once RUN_MAINTENANCE_IF_MAIN;
197

wikimedia / mediawiki

Issues (4122)

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maintenance/getConfiguration.php (2 issues)

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