CVE-2009-4444
First published: Tue Dec 29 2009(Updated: )
Microsoft Internet Information Services (IIS) 5.x and 6.x uses only the portion of a filename before a ; (semicolon) character to determine the file extension, which allows remote attackers to bypass intended extension restrictions of third-party upload applications via a filename with a (1) .asp, (2) .cer, or (3) .asa first extension, followed by a semicolon and a safe extension, as demonstrated by the use of asp.dll to handle a .asp;.jpg file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Internet Information Services | =5.0 | |
| Microsoft Internet Information Services | =6.0 |
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Reference Links
- http://blogs.technet.com/msrc/archive/2009/12/27/new-reports-of-a-vulnerability-in-iis.aspx
- http://www.securityfocus.com/bid/37460
- http://www.vupen.com/english/advisories/2009/3634
- http://securitytracker.com/id?1023387
- http://soroush.secproject.com/downloadable/iis-semicolon-report.pdf
- http://secunia.com/advisories/37831
- collector/nvd-historical
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/microsoft
- canonical/microsoft internet information services
- version/microsoft internet information services/5.0
- version/microsoft internet information services/6.0