VDB-74803 · CVE-2015-2936 · BID 73477

MediaWiki up to 1.24.1 PBKDF2 Long Password resource management

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in MediaWiki up to 1.24.1 (Content Management System) and classified as problematic. Affected by this vulnerability is an unknown functionality of the component PBKDF2. The manipulation as part of a Long Password leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

MediaWiki 1.24.x before 1.24.2, when using PBKDF2 for password hashing, allows remote attackers to cause a denial of service (CPU consumption) via a long password.

The weakness was presented 03/31/2015 by Bawolff with iSEC Partners (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2015-2936 since 04/07/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 82686 (Mandriva Linux Security Advisory : mediawiki (MDVSA-2015:200)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13127 (Mediawiki Multiple Vulnerabilities (MediaWiki Security Release: 1.19.24, 1.23.9 and 1.24.2)).

Upgrading to version 1.24.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (82686). See 74798, 74799, 74800 and 74801 for similar entries.






CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Resource management
CWE: CWE-399 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 82686
Nessus Name: Mandriva Linux Security Advisory : mediawiki (MDVSA-2015:200)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801900
OpenVAS Name: MediaWiki Multiple Vulnerabilities - Mar15 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.24.2


03/31/2015 🔍
03/31/2015 +0 days 🔍
04/07/2015 +7 days 🔍
04/13/2015 +6 days 🔍
04/13/2015 +0 days 🔍
04/14/2015 +1 days 🔍
04/26/2015 +12 days 🔍
05/03/2022 +2564 days 🔍


Product: mediawiki.org

Advisory: openwall.com
Researcher: Bawolff
Organization: iSEC Partners
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-2936 (🔍)
Vulnerability Center: 49880 - MediaWiki 1.24.x before 1.24.2 Remote DoS Vulnerability via a Long Password, Medium
SecurityFocus: 73477 - MediaWiki Multiple Security Vulnerabilities

See also: 🔍


Created: 04/14/2015 09:53 AM
Updated: 05/03/2022 09:42 PM
Changes: 04/14/2015 09:53 AM (63), 06/27/2017 03:49 AM (10), 05/03/2022 09:42 PM (3)
Complete: 🔍


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