From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Sep 07 2005 - 04:37:44 CDT

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TITLE:
Smb4k Insecure Temporary File Handling Vulnerability

SECUNIA ADVISORY ID:
SA16724

VERIFY ADVISORY:
http://secunia.com/advisories/16724/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Smb4K 0.x
http://secunia.com/product/5670/

DESCRIPTION:
A vulnerability has been reported in Smb4K, 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 the insecure handling of temporary
files "/tmp/smb4k.tmp" and "/tmp/sudoers". This can be exploited via
symlink attacks to gain full access to the "/etc/super.tab" and
"/etc/sudoers" files.

The vulnerability has been reported in all versions of 0.4, 0.5, and
0.6 prior to 0.6.3.

SOLUTION:
Update to the fixed version or apply patch.

Version 0.6.x:
Update to version 0.6.3.

Version 0.5.2:
Apply patch.
http://download.berlios.de/smb4k/001_security_fix_smb4k_0.5.2.diff.gz

Version 0.4.1a:
Apply patch.
http://download.berlios.de/smb4k/001_security_fix_smb4k_0.4.1a.diff.gz

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://smb4k.berlios.de/

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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.

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