Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2009-4445

Microsoft Internet Information Services (IIS), when used in conjunction with unspecified third-party upload applications, allows remote attackers to create empty files with arbitrary extensions via a filename containing an initial extension followed by a : (colon) and a safe extension, as demonstrated by an upload of a .asp:.jpg file that results in creation of an empty .asp file, related to support for the NTFS Alternate Data Streams (ADS) filename syntax. NOTE: it could be argued that this is a vulnerability in the third-party product, not IIS, because the third-party product should be applying its extension restrictions to the portion of the filename before the colon.

  • Published: Dec 29, 2009
  • Updated: Apr 13, 2023
  • CVE: CVE-2009-4445
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 6
  • AV:N/AC:M/Au:S/C:P/I:P/A:P

CWEs: