MediaWiki < 1.19.12 / 1.21.6 / 1.22.3 Multiple Vulnerabilities

medium Nessus Plugin ID 72878

Synopsis

The remote web server contains an application that is affected by multiple vulnerabilities.

Description

According to its self-reported version number, the instance of MediaWiki running on the remote host is affected by the following vulnerabilities :

- A cross-site scripting (XSS) vulnerability exists in the includes/upload/UploadBase.php script due to improper validation of user-supplied input during the uploading of an SVG namespace. This allows a remote attacker to create a specially crafted request to execute arbitrary script code in a user's browser session within the trust relationship between the browser and server.
(CVE-2014-2242)

- A flaw exists in the includes/User.php script in the theloadFromSession() function where the validation of user tokens is terminated upon encountering the first incorrect character. This allows a remote attacker to gain access to session tokens using a brute force timing attack. (CVE-2014-2243)

- A cross-site scripting (XSS) vulnerability exists in the includes/api/ApiFormatBase.php script in the formatHTML() function due to improper validation of user-supplied input when handling links appended to api.php. This allows a context-dependent attacker to create a specially crafted request to execute arbitrary code in a user's browser session within the trust relationship between the browser and server.
(CVE-2014-2244)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to MediaWiki version 1.19.12 / 1.21.6 / 1.22.3 or later.

See Also

http://www.nessus.org/u?325d9a7e

https://www.mediawiki.org/wiki/Release_notes/1.19

https://www.mediawiki.org/wiki/Release_notes/1.21

https://www.mediawiki.org/wiki/Release_notes/1.22

https://phabricator.wikimedia.org/T62771

https://phabricator.wikimedia.org/T63346

https://phabricator.wikimedia.org/T63362

Plugin Details

Severity: Medium

ID: 72878

File Name: mediawiki_1_19_12.nasl

Version: 1.11

Type: remote

Family: CGI abuses

Published: 3/7/2014

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.7

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: cpe:/a:mediawiki:mediawiki

Required KB Items: www/PHP, Settings/ParanoidReport, installed_sw/MediaWiki

Exploit Ease: No known exploits are available

Patch Publication Date: 2/28/2014

Vulnerability Publication Date: 2/3/2014

Reference Information

CVE: CVE-2014-2242, CVE-2014-2243, CVE-2014-2244

BID: 65883, 65906, 65910

CWE: 20, 442, 629, 711, 712, 722, 725, 74, 750, 751, 79, 800, 801, 809, 811, 864, 900, 928, 931, 990