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[SA29005] DESlock+ DLMFDISK.sys/DLMFENC.sys Privilege Escalation Vulnerabilities

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Feb 19 2008 - 11:17:05 CST

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TITLE:
DESlock+ DLMFDISK.sys/DLMFENC.sys Privilege Escalation
Vulnerabilities

SECUNIA ADVISORY ID:
SA29005

VERIFY ADVISORY:
http://secunia.com/advisories/29005/

CRITICAL:
Less critical

IMPACT:
Privilege escalation, DoS

WHERE:
Local system

SOFTWARE:
DESlock+ 3.x
http://secunia.com/product/17600/

DESCRIPTION:
mu-b has reported some vulnerabilities in DESlock+, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service) or gain escalated privileges.

The vulnerabilities are caused due to input validation errors in
DLMFDISK.sys and DLMFENC.sys and can be exploited to e.g. execute
arbitrary code with kernel privileges or cause the system to crash
via specially crafted arguments passed to certain IOCTL handlers.

The vulnerabilities are reported in version 3.2.6. Prior versions may
also be affected.

SOLUTION:
Update to version 3.2.7.
http://www.deslock.com/deslockp_downloads.php

PROVIDED AND/OR DISCOVERED BY:
mu-b

ORIGINAL ADVISORY:
http://www.digit-labs.org/files/exploits/deslock-list-zero.c
http://www.digit-labs.org/files/exploits/deslock-list-zero-v2.c
http://www.digit-labs.org/files/exploits/deslock-pown-v2.c
http://www.digit-labs.org/files/exploits/deslock-list-leak.c

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