Description
Buffer overflow in the DNS Client service in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers to execute arbitrary code via a crafted record response. NOTE: while MS06-041 implies that there is a single issue, there are multiple vectors, and likely multiple vulnerabilities, related to (1) a heap-based buffer overflow in a DNS server response to the client, (2) a DNS server response with malformed ATMA records, and (3) a length miscalculation in TXT, HINFO, X25, and ISDN records.
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.
Exploit-DB 1
- Microsoft Windows - DNS Resolution Remote Denial of Service (PoC) (MS06-041) EDB-2900 · dos · Dec 9, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- MS06-041 vendor-advisory
- 1016653 vdb-entry
- win-dns-client-bo(28013) vdb-entry
- 20060808 Microsoft DNS Client Character String Buffer Overflow Vulnerability third-party-advisory
- 20060808 Microsoft DNS Client Integer Overflow Vulnerability third-party-advisory
- dns-data-string-bo(28240) vdb-entry
- ADV-2006-3211 vdb-entry
- VU#794580 third-party-advisory
- 21394 third-party-advisory
- oval:org.mitre.oval:def:723 vdb-entry signature
- 27844 vdb-entry
- TA06-220A third-party-advisory
- 19404 vdb-entry
- 20060808 Microsoft DNS Client ATMA Buffer Overflow Vulnerability third-party-advisory
- dns-rrdatalen-underflow(24586) vdb-entry