Rule: -- Sid: 1595 -- Summary: This event is generated when an attempt is made to exploit a buffer overflow vulnerability associated with FrontPage Server Extension software. -- Impact: Remote access. This attack may permit exeuction of arbitrary commands on the vulnerable server. -- Detailed Information: Microsoft FrontPage 97 and 98 Server Extensions are shipped with htimage.exe and imagemap.exe files that provide image-mapping support on the server for legacy browsers. There is a vulnerability associated with the htimage.exe file because of unchecked buffers that may permit execution of arbitrary code on the vulnerable server. -- Affected Systems: Microsoft Exchange Server 5.5 and Microsoft Exchange Server 5.5 SP1, SP2, SP3, SP4 -- Attack Scenarios: An attacker can craft a special URL referencing the htimage.exe file that causes a buffer overflow, allowing execution of arbitrary commands on the vulnerable server. -- Ease of Attack: Simple. -- False Positives: None Known. -- False Negatives: None Known. -- Corrective Action: Remove the htimage.exe and imagemap.exe files from the server. -- Contributors: Original rule writer unknown Modified by Brian Caswell <bmc@sourcefire.com> Sourcefire Research Team Judy Novak <judy.novak@sourcefire.com> -- Additional References: nessus http://cgi.nessus.org/plugins/dump.php3?id=10376 CVE http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2000-0256 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2000-0122 Bugtraq http://www.securityfocus.com/bid/1117 --
