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CVE-2009-4445

medium · 6

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.

6
CVSS
12.8%
EPSS (exploit prob.)
96th
EPSS percentile
2009-12-29
Published

AV:N/AC:M/Au:S/C:P/I:P/A:P

Weaknesses

CWE-20

Affected products

VendorProductAffected versions
microsoftinternet_information_services<= 6.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2009-4445