CVE-2015-8623

2017-03-2300:00:00

ubuntu.com

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

66.3%

JSON

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.