Vulnerability Details CVE-2009-4444
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.478
EPSS Ranking 97.6%
CVSS Severity
CVSS v2 Score 6.0
Products affected by CVE-2009-4444
-
cpe:2.3:a:microsoft:internet_information_services:5.0
-
cpe:2.3:a:microsoft:internet_information_services:6.0