RETIRED: Squid Proxy 'Host' HTTP Header Security Bypass Vulnerability

Bugtraq ID:	53024
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Apr 16 2012 12:00AM
Updated:	May 02 2012 01:01AM
Credit:	Gabriel Menezes Nunes
Vulnerable:	Squid Web Proxy Cache 3.1.19
Not Vulnerable:

RETIRED: Squid Proxy 'Host' HTTP Header Security Bypass Vulnerability

Squid Proxy is prone to a security-bypass vulnerability because it fails to properly enforce filtering rules.

A successful attack will allow an attacker to bypass intended security restrictions; this may aid in other attacks.

Squid Proxy 3.1.19 is vulnerable; other versions may also be affected.

Note: This BID is being retired; the issue can not be exploited as described.

RETIRED: Squid Proxy 'Host' HTTP Header Security Bypass Vulnerability

Attackers can exploit this issue using readily available tools.

The following exploit code is available:

• /data/vulnerabilities/exploits/53015.py

RETIRED: Squid Proxy 'Host' HTTP Header Security Bypass Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

RETIRED: Squid Proxy 'Host' HTTP Header Security Bypass Vulnerability

References:

• Squid Homepage (Squid)