[ GLSA 201201-11 ] Firewall Builder: Privilege escalation

Message

GLSA · Post by **GLSA** » Mon Jan 23, 2012 10:26 pm

Gentoo Linux Security Advisory

Title: Firewall Builder: Privilege escalation ([glsa=201201-11]GLSA 201201-11[/glsa])
Severity: normal
Exploitable: local
Date: January 23, 2012
Bug(s): #235809, #285861
ID: 201201-11

Synopsis

Insecure temporary file usage in Firewall Builder could allow
attackers to overwrite arbitrary files.

Background

Firewall Builder is a GUI for easy management of multiple firewall
platforms.

Affected Packages

Package: net-firewall/fwbuilder
Vulnerable: < 3.0.7
Unaffected: >= 3.0.7
Architectures: All supported architectures

Description

Two vulnerabilities in Firewall Builder allow the iptables and
fwb_install scripts to use temporary files insecurely.

Impact

A local attacker could possibly overwrite arbitrary files with the
privileges of the user running Firewall Builder.

Workaround

There is no known workaround at this time.

Resolution

All Firewall Builder users should upgrade to the latest version:

Code: Select all

# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-firewall/fwbuilder-3.0.7"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since March 09, 2010. It is likely that your system is already
no longer affected by this issue.

References

CVE-2008-4956
CVE-2009-4664