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TITLE:
Kaspersky Anti-Virus "klif.sys" Privilege Escalation Vulnerability

SECUNIA ADVISORY ID:
SA15618

VERIFY ADVISORY:
http://secunia.com/advisories/15618/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

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

DESCRIPTION:
Ilya Rabinovich has reported a vulnerability in Kaspersky Anti-Virus,
which can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to a design error in the "klif.sys"
driver where the pages insecurely has the supervisor bit disabled.
This can be exploited to execute arbitrary code inside the driver.

The vulnerability has been reported in versions 5.0.227, 5.0.228, and
5.0.335 on a system running Microsoft Windows 2000.

SOLUTION:
Grant only trusted users access to affected systems.

Kaspersky Anti-Virus running on Microsoft Windows XP is reportedly
not affected.

PROVIDED AND/OR DISCOVERED BY:
Ilya Rabinovich, SoftSphere Technologies.

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


Please Note:
Secunia recommends that you verify all advisories you receive by
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