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Microsoft IIS 0-Day Vulnerability Parsing Files (semi-colon bug)

Microsoft IIS 0Day Vulnerability in Parsing Files (semi-colon bug)

IIS 6 and earlier truncate a filename at a semicolon when choosing a handler, so malicious.asp;.jpg is passed to asp.dll and executed while an uploader that inspects only the trailing extension sees a JPEG. Found by fuzzing with ASP itself; a 2008 survey bypassed 70 percent of supposedly secure uploaders. The NTFS colon variant is noted as distinct.

Record

Document
Microsoft IIS 0Day Vulnerability in Parsing Files (semi-colon bug)
Researcher
Soroush Dalili
Published by
Soroush.SecProject.com
Format
Whitepaper
Topic
Other

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This page is the archive's own catalogue record. The research is the work of Soroush Dalili, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .