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Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: <http://" in a PROPFIND request, as exploited in the wild in July or August 2016.

[Additional Information] the ScStoragePathFromUrl function is called twice

[Vulnerability Type] Buffer overflow

[Vendor of Product] Microsoft

[Affected Product Code Base] Windows Server 2003 R2

[Affected Component] ScStoragePathFromUrl

[Attack Type] Remote

[Impact Code execution] true

[Attack Vectors] crafted PROPFIND data

[Has vendor confirmed or acknowledged the vulnerability?] true

[Discoverer] Zhiniang Peng and Chen Wu.

Information Security Lab & School of Computer Science & Engineering, South China University of Technology Guangzhou, China

You can get the PoC exploit Code from here