PT-2012-57: Privilege Gaining in Bitrix CMS
Version: 11.5.6 and earlier
Severity level: High
Impact: Administrator Privilege Gaining
Access Vector: Remote
Base Score: 10
CVE: not assigned
Bitrix CMS is a professional web content management system.
The specialists of the Positive Research center have detected a Privilege Gaining vulnerability in Bitrix CMS.
The vulnerability is possible due to the fact that Bitrix CMS uses mt_rand() pseudorandom number generator for generation of the password reset token, which can be potentially predicted under certain conditions.
How to fix
Update your software up to the latest version.
03.09.2012 - Vendor gets vulnerability details
10.09.2012 - Vendor releases fixed version and details
15.07.2014 - Public disclosure
The vulnerability was detected by Timur Yunusov, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research: