Description
DLMFENC.sys 1.0.0.28 in DESlock+ 3.2.7 allows local users to cause a denial of service (system crash) or potentially execute arbitrary code via a certain DLMFENC_IOCTL request to \\.\DLKPFSD_Device that overwrites a pointer, probably related to use of the ProbeForRead function when ProbeForWrite was intended.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- DESlock+ < 3.2.7 - Local Kernel Race Condition Denial of Service (PoC) EDB-6497 · dos · Sep 20, 2008 · verified
- DESlock+ < 3.2.7 - 'probe read' Local Kernel Denial of Service (PoC) EDB-6498 · dos · Sep 20, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://digit-labs.org/files/exploits/deslock-probe-read.c
- ADV-2008-2638 vdb-entry
- 31921 third-party-advisory
- 6498 exploit
- 4342 third-party-advisory