Check Point Advisories

Squid Proxy Cache cachemgr.cgi Resource Exhaustion (CVE-2012-5643)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-1339
Date Published:	30 Dec 2012
Severity:	High
Last Updated:	Sunday 07 April, 2013
Source:
Industry Reference:	CVE-2012-5643
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A resource exhaustion vulnerability has been reported in Squid Proxy Cache Manager. The vulnerability is due to missing input validation in the cachemgr.cgi tool. A remote, unauthenticated attacker can send specially crafted POST requests to cause cachemgr.cgi to use large amounts of memory.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Squid Proxy Cache cachemgr.cgi Resource Exhaustion protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Application Servers Protection Violation.
Attack Information: Squid Proxy Cache cachemgr.cgi Resource Exhaustion