CVE-2017-8810 Information

Description

MediaWiki before 1.27.4 1.28.x before 1.28.3 and 1.29.x before 1.29.2 when a private wiki is configured provides different error messages for failed login attempts depending on whether the username exists which allows remote attackers to enumerate account names and conduct brute-force attacks via a series of requests.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.securitytracker.com/id/1039812 https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html https://www.debian.org/security/2017/dsa-4036

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5