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TITLE:
ESET Smart Security "epfw.sys" IOCTL Handler Privilege Escalation

SECUNIA ADVISORY ID:
SA33210

VERIFY ADVISORY:
http://secunia.com/advisories/33210/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
ESET Smart Security 3.x
http://secunia.com/advisories/product/16444/

DESCRIPTION:
alex has discovered a vulnerability in ESET Smart Security, which can
be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to the IOCTL handler of the
"epfw.sys" driver improperly processing user space parameters. This
can be exploited to overwrite an arbitrary address and execute
arbitrary code in kernel space via a specially crafted IOCTL.

The vulnerability is confirmed in version 3.0.672. Other versions
prior to 3.0.684 may also be affected.

SOLUTION:
Update to version 3.0.684.

PROVIDED AND/OR DISCOVERED BY:
alex, NT Internals

ORIGINAL ADVISORY:
NT Internals:
http://www.ntinternals.org/ntiadv0807/ntiadv0807.html

ESET:
http://www.eset.com/joomla/index.php?option=com_content&task=view&id=4113&Itemid=5

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