MediaWiki up to 1.23.11/1.24.4 CSRF Protection includes/User.php User::matchEditToken wgArticlePath cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in MediaWiki up to 1.23.11/1.24.4. This impacts the function User::matchEditToken of the file includes/User.php of the component CSRF protection. Performing a manipulation of the argument wgArticlePath results in cross-site request forgery. This vulnerability is known as CVE-2015-8623. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in MediaWiki up to 1.23.11/1.24.4 (Content Management System). This affects the function User::matchEditToken of the file includes/User.php of the component CSRF Protection. The manipulation of the argument wgArticlePath with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12 and 1.24.x before 1.24.5 does not perform token comparison in constant time before returning, which allows remote attackers to guess the edit token and bypass CSRF protection via a timing attack, a different vulnerability than CVE-2015-8624.

The bug was discovered 12/23/2015. The weakness was published 03/23/2017 (Website). It is possible to read the advisory at lists.wikimedia.org. This vulnerability is uniquely identified as CVE-2015-8623 since 12/23/2015. 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 of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:includes/User.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 87616 (FreeBSD : mediawiki -- multiple vulnerabilities (f36bbd66-aa44-11e5-8f5c-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 1.23.12 or 1.24.5 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (87616). Similar entries are available at VDB-98414, VDB-98416, VDB-98417 and VDB-98418. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87616
Nessus Name: FreeBSD : mediawiki -- multiple vulnerabilities (f36bbd66-aa44-11e5-8f5c-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801900
OpenVAS Name: MediaWiki Multiple Vulnerabilities - Dec15 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.23.12/1.24.5

Timelineinfo

12/23/2015 🔍
12/23/2015 +0 days 🔍
12/24/2015 +1 days 🔍
12/29/2015 +5 days 🔍
03/23/2017 +450 days 🔍
03/23/2017 +0 days 🔍
03/24/2017 +1 days 🔍
09/12/2020 +1268 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: lists.wikimedia.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8623 (🔍)
GCVE (CVE): GCVE-0-2015-8623
GCVE (VulDB): GCVE-100-98415
OSVDB: - CVE-2015-8623 - MediaWiki - Timing Attack Issue

See also: 🔍

Entryinfo

Created: 03/24/2017 07:18
Updated: 09/12/2020 07:23
Changes: 03/24/2017 07:18 (74), 09/12/2020 07:23 (3)
Complete: 🔍
Cache ID: 216::103

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