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

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2022-10-03T16:24:05

Updated: 2022-10-03T16:24:05

Reserved: 2022-10-03T00:00:00


Link: CVE-2009-4444

JSON object: View

cve-icon NVD Information

Status : Analyzed

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

Modified: 2020-11-23T19:50:33.257


Link: CVE-2009-4444

JSON object: View

cve-icon Redhat Information

No data.