TrustPort WebFilter 'help.php' Arbitrary File Access Vulnerability

Summary
TrustPort WebFilter is prone to an arbitrary file-access vulnerability.
Impact
An attacker can exploit this issue to read arbitrary files in the context of the web server process, which may aid in further attacks. Impact Level: Application
Solution
Updates are available.
Insight
A vulnerability exists within the help.php script, allowing an remote attacker to access files outside of the webroot with SYSTEM privileges, without authentication.
Affected
TrustPort WebFilter 5.5.0.2232 is vulnerable other versions may also be affected.
Detection
Send a special GET request, with a base64 encoded directory traversal string and file name
References