[ GLSA 200606-05 ] Pound: HTTP request smuggling

[GLSA]

Gentoo Linux Security Advisory

Title: Pound: HTTP request smuggling (GLSA 200606-05)
Severity: low
Exploitable: remote
Date: June 07, 2006
Updated: November 24, 2006
Bug(s): #118541
ID: 200606-05

Synopsis

Pound is vulnerable to HTTP request smuggling, which could be exploited to bypass security restrictions or poison web caches.

Background

Pound is a reverse proxy, load balancer and HTTPS front-end. It allows to distribute the load on several web servers and offers a SSL wrapper for web servers that do not support SSL directly.

Affected Packages

Package: www-servers/pound
Vulnerable: < 2.0.5
Unaffected: >= 2.0.5
Unaffected: >= 1.10 < 1.11
Unaffected: >= 1.9.4 < 1.9.5
Architectures: All supported architectures


Description

Pound fails to handle HTTP requests with conflicting "Content-Length" and "Transfer-Encoding" headers correctly.

Impact

An attacker could exploit this vulnerability by sending HTTP requests with specially crafted "Content-Length" and "Transfer-Encoding" headers to bypass certain security restrictions or to poison the web proxy cache.

Workaround

There is no known workaround at this time.

Resolution

All Pound users should upgrade to the latest version: