VDB-74809 · CVE-2015-2942 · BID 73477

MediaWiki up to 1.19.23/1.23.8/1.24.1 SVG/PDF File resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as problematic was found in MediaWiki up to 1.19.23/1.23.8/1.24.1 (Content Management System). Affected by this vulnerability is an unknown function of the component SVG/PDF File Handler. The manipulation with an unknown input 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 before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of nested entity references in an (1) SVG file or (2) XMP metadata in a PDF file, aka a "billion laughs attack," a different vulnerability than CVE-2015-2937.

The weakness was shared 03/31/2015 by Bawolff with iSEC Partners (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2015-2942 since 04/07/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 84164 (MediaWiki < 1.19.24 / 1.23.9 / 1.24.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. 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 1.19.24, 1.23.9 or 1.24.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (84164).

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84164
Nessus Name: MediaWiki < 1.19.24 / 1.23.9 / 1.24.2 Multiple Vulnerabilities
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: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.19.24/1.23.9/1.24.2

Timelineinfo

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 🔍

Sourcesinfo

Product: mediawiki.org

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

CVE: CVE-2015-2942 (🔍)
Vulnerability Center: 49883 - MediaWiki 1.1x and 1.2x Remote DoS \, Medium
SecurityFocus: 73477 - MediaWiki Multiple Security Vulnerabilities

Entryinfo

Created: 04/14/2015 09:53 AM
Updated: 05/03/2022 10:49 PM
Changes: 04/14/2015 09:53 AM (63), 06/27/2017 03:51 AM (9), 05/03/2022 10:49 PM (3)
Complete: 🔍
Cache ID: 3:E84:40

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