{ "schema_version": "1.4.0", "id": "GHSA-vgvh-f7c3-rv4v", "modified": "2022-05-02T03:54:50Z", "published": "2022-05-02T03:54:50Z", "aliases": [ "CVE-2009-4445" ], "details": "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.", "severity": [], "affected": [], "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-4445" }, { "type": "WEB", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/55308" }, { "type": "WEB", "url": "http://securitytracker.com/id?1023387" }, { "type": "WEB", "url": "http://soroush.secproject.com/downloadable/iis-semicolon-report.pdf" } ], "database_specific": { "cwe_ids": [ "CWE-20" ], "severity": "MODERATE", "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2009-12-29T21:00:00Z" } }