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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2009-12-29T19:00:00Z
Updated: 2024-09-16T18:12:47.226Z
Reserved: 2009-12-29T00:00:00Z
Link: CVE-2009-4444
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2009-12-29T21:00:24.327
Modified: 2020-11-23T19:50:33.257
Link: CVE-2009-4444
Redhat
No data.