Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-1766

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
23/05/2011
Last modified:
11/04/2025

Description

includes/User.php in MediaWiki before 1.16.5, when wgBlockDisablesLogin is enabled, does not clear certain cached data after verification of an auth token fails, which allows remote attackers to bypass authentication by creating crafted wikiUserID and wikiUserName cookies, or by leveraging an unattended workstation.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* 1.16.4 (including)
cpe:2.3:a:mediawiki:mediawiki:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.3.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools