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Research > Zero-Day Tracker > 20070407

Microsoft DNS RPC Buffer Overflow

Date Disclosed:

Date Patched:


Affected Software:
Windows 2000
Windows 2003

A remote code execution vulnerability exists within Microsoft's DNS Server service. Utilizing RPC functionality designed for remote management, an attacker is able to anonymously cause a stack-based buffer overflow. This code is executed under the context of SYSTEM, allowing for full system compromise.

eEye Research is currently investigating the vulnerability and active exploitation and will update this ZDT entry as more information becomes available.


Code Execution:

Arbitrary code execution as SYSTEM
This vulnerability can be exploited anonymously against Microsoft's DNS Server, allowing for a remote attacker to run arbitrary code under SYSTEM in order to obtain full system access.

Since a vendor-supplied patch has been released, the best form of mitigation is to apply MS07-029.

eEye's Blink® Personal Edition protects from this vulnerability.
eEye's Blink® Professional Edition protects from this vulnerability.
eEye's Retina® Network Security Scanner scans devices to detect for this vulnerability.


Microsoft Security Advisory (935964)
ISC Handler's Diary
Public PoC Code Disclosure (Reverse Shell)

4/7/2007: First Signs Of Active Exploitation
4/14/2007: First Exploit Tool Released
5/8/2007: MS07-029 Released

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