AlienVault Unified Security Management Remote Authentication Bypass Vulnerability

2016-09-19T00:00:00
ID ZDI-16-517
Type zdi
Reporter Peter Lapp (lappsec)
Modified 2016-06-22T00:00:00

Description

This vulnerability allows remote attackers to bypass authentication requirements on vulnerable installations of AlienVault Unified Security Manager. Authentication is not required to exploit this vulnerability. The specific flaw exists within the logcheck function in session.inc. By providing a specific value as a user-agent, an attacker can bypass authentication to a number of pages. In addition to viewing information, it's possible to modify the application and achieve arbitrary code execution as root.