Description
Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before 4.8.1356, allows local users to cause a denial of service (system crash) and possibly gain privileges via a crafted IOCTL request to IOCTL 0xb2c80018.
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 1
- Avast! 4.8.1351.0 AntiVirus - 'aswMon2.sys' Kernel Memory Corruption EDB-10106 · dos · Nov 17, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 36507 vdb-entry
- 1022940 vdb-entry
- 20090923 Avast aswMon2.sys kernel memory corruption and Local Privilege Escalation. mailing-list
- 36858 third-party-advisory
- avast-aswmon2-bo(53456) vdb-entry
- oval:org.mitre.oval:def:6226 vdb-entry signature
- https://www.evilfingers.com/advisory/Advisory/Avast_aswMon2.sys_kernel_memory_corruption_and_Local_Privilege_Escalation.php
- ADV-2009-2761 vdb-entry
- http://www.avast.com/eng/avast-4-home_pro-revision-history.html
- 58402 vdb-entry