[ GLSA 200803-21 ] Sarg: Remote execution of arbitrary code

[GLSA]

Gentoo Linux Security Advisory

Title: Sarg: Remote execution of arbitrary code (GLSA 200803-21)
Severity: normal
Exploitable: remote
Date: March 12, 2008
Bug(s): #212208, #212731
ID: 200803-21

Synopsis

Sarg is vulnerable to the execution of arbitrary code when processed with untrusted input files.

Background

Sarg (Squid Analysis Report Generator) is a tool that provides many informations about the Squid web proxy server users activities: time, sites, traffic, etc.

Affected Packages

Package: net-analyzer/sarg
Vulnerable: < 2.2.5
Unaffected: >= 2.2.5
Architectures: All supported architectures


Description

Sarg doesn't properly check its input for abnormal content when processing Squid log files.

Impact

A remote attacker using a vulnerable Squid as a proxy server or a reverse-proxy server can inject arbitrary content into the "User-Agent" HTTP client header, that will be processed by sarg, which will lead to the execution of arbitrary code, or JavaScript injection, allowing Cross-Site Scripting attacks and the theft of credentials.

Workaround

There is no known workaround at this time.

Resolution

All sarg users should upgrade to the latest version: