CVE-2015-5267 Information

Description

lib/moodlelib.php in Moodle through 2.6.11 2.7.x before 2.7.10 2.8.x before 2.8.8 and 2.9.x before 2.9.2 relies on the PHP mt_rand function to implement the random_string and complex_random_string functions which makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach.

CVSS Vector

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

Reference

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50860 http://www.openwall.com/lists/oss-security/2015/09/21/1 http://www.securitytracker.com/id/1033619 https://moodle.org/mod/forum/discuss.php?d=320291

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