Rule: -- Sid: 2664 -- Summary: This event is generated when a remote attacker attempts to exploit a format string vulnerability against an IMAP server. -- Impact: Serious. A successful format string attack could result in the execution of arbitrary code with the same privileges as the user running the IMAP daemon. -- Detailed Information: Some versions of the Courier IMAP daemon are vulnerable to format string exploits prior to and during authentication to the IMAP server. A successful exploit attempt could result in the remote attacker gaining unauthorized root access to a vulnerable system. -- Affected Systems: Courier IMAP server versions 1.6 though 3.0.2 -- Attack Scenarios: A remote attacker could use a publicly available script to exploit the vulnerability an gain control of the target host. -- Ease of Attack: Simple. Exploit code is available. -- False Positives: None known. -- False Negatives: None known. -- Corrective Action: Upgrade to the latest non-affected version of the software. -- Contributors: Sourcefire Vulnerability Research Team Matt Watchinski <mwatchinski@sourcefire.com> Nigel Houghton <nigel.houghton@sourcefire.com> -- Additional References: --
