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.
History

No history.

cve-icon 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

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-12-29T21:00:24.327

Modified: 2024-11-21T01:09:39.660

Link: CVE-2009-4444

cve-icon Redhat

No data.