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[ GLSA 200502-01 ] FireHOL: Insecure temporary file creation
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GLSA
Bodhisattva
Bodhisattva


Joined: 17 Apr 2002
Posts: 2602
Location: Raleigh, NC

PostPosted: Tue Feb 01, 2005 11:00 pm    Post subject: [ GLSA 200502-01 ] FireHOL: Insecure temporary file creation Reply with quote

Gentoo Linux Security Advisory

Title: FireHOL: Insecure temporary file creation (GLSA 200502-01)
Severity: normal
Exploitable: local
Date: February 01, 2005
Updated: May 22, 2006
Bug(s): #79330
ID: 200502-01

Synopsis

FireHOL is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background

FireHOL is an iptables rules generator.

Affected Packages

Package: net-firewall/firehol
Vulnerable: < 1.224
Unaffected: >= 1.224
Architectures: All supported architectures


Description

FireHOL insecurely creates temporary files with predictable names.

Impact

A local attacker could create malicious symbolic links to arbitrary system files. When FireHOL is executed, this could lead to these files being overwritten with the rights of the user launching FireHOL, usually the root user.

Workaround

There is no known workaround at this time.

Resolution

All FireHOL users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/firehol-1.224"


References

FireHOL CVS log
CVE-2005-0225


Last edited by GLSA on Mon May 22, 2006 4:18 am; edited 2 times in total
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