This is a proof of concept for the following vulnerabilities:
1.) Squid 3.1.9 (CVE-2012-2213) - CONFIRMED
2.) McAfee Web Access Gateway (CVE-2012-2212) - NOT CONFIRMED, but likely
Feel free to test yourself and let me know what you find.
More details about these issues will be on the Spiderlabs Blog shortly.
-claudijd