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TITLE:
Kaspersky Anti-Virus Insecure Log Directory Security Issue

SECUNIA ADVISORY ID:
SA16425

VERIFY ADVISORY:
http://secunia.com/advisories/16425/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Kaspersky Anti-Virus 5.x
http://secunia.com/product/2781/

DESCRIPTION:
Dr. Peter Bieringer has reported a security issue in Kaspersky
Anti-Virus for Linux File Server, which can be exploited by
malicious, local users to perform certain actions on a vulnerable
system with escalated privileges.

The security issue is caused due to insecure default directory
permissions of the log directory "/var/log/kav/5.5/kav4unix/". This
can be exploited via symlink attacks to create or overwrite arbitrary
files with privileges of the root user.

The security issue has been reported in version 5.5-2. Prior versions
may also be affected.

SOLUTION:
Update to version 5.5-3.

PROVIDED AND/OR DISCOVERED BY:
Dr. Peter Bieringer

ORIGINAL ADVISORY:
ftp://ftp.aerasec.de/pub/advisories/kav4unix/kav4unix-local-root-exploit.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:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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