Description
DNSAPI.dll in the DNS client in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly process DNS queries, which allows remote attackers to execute arbitrary code via (1) a crafted LLMNR broadcast query or (2) a crafted application, aka "DNS Query Vulnerability."
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.
Metasploit 1 module
-
Microsoft Windows DNSAPI.dll LLMNR Buffer Underrun DoS
auxiliary/dos/windows/llmnr/ms11_030_dnsapi
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- oval:org.mitre.oval:def:11902 vdb-entry signature
- TA11-102A third-party-advisory
- 1025332 vdb-entry
- 44161 third-party-advisory
- ADV-2011-0948 vdb-entry
- MS11-030 vendor-advisory
- 47242 vdb-entry
- 71780 vdb-entry