MediaWiki up to 1.21.2 Sanitizer::checkCss incomplete blacklist

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MediaWiki. This impacts the function Sanitizer::checkCss. Performing a manipulation results in incomplete blacklist. This vulnerability is known as CVE-2013-4568. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in MediaWiki (Content Management System). This affects the function Sanitizer::checkCss. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. CWE is classifying the issue as CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. This is going to have an impact on integrity. The summary by CVE is:

Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.

The weakness was published 12/13/2013 by Kevin Israel as Bug 55332 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.wikimedia.org. This vulnerability is uniquely identified as CVE-2013-4568 since 06/12/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1562.006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 73256 (Debian DSA-2891-1 : mediawiki, mediawiki-extensions Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12810 (Mediawiki Multiple Vulnerabilities (MediaWiki Security Release: 1.21.3, 1.20.8 and 1.19.9)).

Upgrading to version 1.19.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (73256), SecurityFocus (BID 63761†), Secunia (SA57472†) and Vulnerability Center (SBV-42461†). Similar entries are available at VDB-11228, VDB-11233, VDB-12002 and VDB-12011. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Incomplete blacklist
CWE: CWE-184 / CWE-183 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73256
Nessus Name: Debian DSA-2891-1 : mediawiki, mediawiki-extensions Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 867095
OpenVAS Name: Fedora Update for mediawiki FEDORA-2013-21856
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.19.6

Timelineinfo

05/06/2013 🔍
05/06/2013 +0 days 🔍
06/12/2013 +37 days 🔍
12/04/2013 +175 days 🔍
12/13/2013 +9 days 🔍
12/13/2013 +0 days 🔍
03/31/2014 +108 days 🔍
03/24/2015 +358 days 🔍
01/11/2022 +2485 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: Bug 55332
Researcher: Kevin Israel
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4568 (🔍)
GCVE (CVE): GCVE-0-2013-4568
GCVE (VulDB): GCVE-100-65745

OVAL: 🔍

SecurityFocus: 63761 - Mediawiki CSS Tags CVE-2013-4568 HTML Injection Vulnerability
Secunia: 57472 - Debian update for mediawiki and mediawiki-extensions, Highly Critical
Vulnerability Center: 42461 - MediaWiki 1.19-1.19.8, 1.20-1.20.7, 1.21-1.21.2 Remote Security Bypass Vulnerability via CSS Expression Filtering, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/11/2022 19:02
Changes: 03/24/2015 15:54 (69), 05/16/2017 04:39 (9), 01/11/2022 19:02 (3)
Complete: 🔍
Cache ID: 216:727:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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