alex has discovered a vulnerability in Anti-Trojan Elite, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or potentially gain escalated privileges.
The vulnerability is caused due to the Atepmon.sys driver improperly validating parameters received via IOCTL code 0x00222494. This can be exploited to cause a system crash or potentially execute arbitrary code in kernel space.
Successful exploitation requires that the Anti-Trojan Elite GUI is not running.
The vulnerability is confirmed in version 4.2.2. Other versions may also be affected.
Solution: Restrict local access to trusted users only.
Provided and/or discovered by: alex, NT Internals
Original Advisory: http://www.ntinternals.org/ntiadv0802/ntiadv0802.html
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