Rule: -- Sid: 1598 -- Summary: This event is generated when an attempt is made to execute a directory traversal attack. -- Impact: Information disclosure. This is a directory traversal attempt which can lead to information disclosure and possible exposure of sensitive system information. -- Detailed Information: Directory traversal attacks usually target web, web applications and ftp servers that do not correctly check the path to a file when requested by the client. This can lead to the disclosure of sensitive system information which may be used by an attacker to further compromise the system. -- Affected Systems: -- 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 Nigel Houghton -- Additional References: --