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TITLE:
GIPTables Firewall Insecure Temporary File Creation

SECUNIA ADVISORY ID:
SA15604

VERIFY ADVISORY:
http://secunia.com/advisories/15604/

CRITICAL:
Not critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
GIPTables Firewall 1.x
http://secunia.com/product/5214/

DESCRIPTION:
Eric Romang has reported a vulnerability in GIPTables Firewall, which
can be exploited by malicious, local users to perform certain actions
on a vulnerable system with escalated privileges.

The vulnerability is caused due to temporary files being created
insecurely. This can be exploited via symlink attacks in combination
with a race condition to create or overwrite arbitrary files with the
privileges of the user configuring the firewall rules.

The vulnerability has been reported in version 1.1 and prior.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Eric Romang, ZATAZ Audit

ORIGINAL ADVISORY:
http://www.zataz.net/adviso/giptables-05222005.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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