Rule: -- Sid: 1992 -- Summary: This event is generated when an attempt is made to list directories outside the ftp root directory. -- Impact: Information disclosure. This is a directory traversal attempt which can lead to information disclosure and possible exposure of sensitive system information. -- Detailed Information: Some versions of the QVT FTP server from QPC Software allows browsing the directory structure of a host using a directory traversal technique. -- Affected Systems: QPC Software QVT/Net 4.0 for Windows NT, 2000 and 9x QPC Software QVT/Term 5.0 for Windows NT, 2000 and 9x Other FTP servers may be vulnerable -- Attack Scenarios: An authorized user or anonymous user can use the directory traversal technique, to browse folders outside the ftp root directory. Information gathered may be used in further attacks against the host. -- Ease of Attack: Simple. No exploit software required. -- False Positives: None known -- False Negatives: None known -- Corrective Action: Apply the appropriate vendor supplied patches Upgrade the software to the latest non-affected version. -- Contributors: Sourcefire Research Team Brian Caswell <bmc@sourcefire.com> Nigel Houghton <nigel.houghton@sourcefire.com> -- Additional References: --
