Rule:--Sid:805--Summary:This event is generated when an attempt is made to exploit an authentication vulnerability in the WebSpeed WSIS Messenger Administration Utility. --Impact:Information gathering and system integrity. Unauthorized administrative access to the to the WebSpeed configuration utility can allow an attacker to view and change WebSpeed configuration, and possibly stop WebSpeed services.--Detailed Information:The WSIS Messenger Administration Utility is a web-based administration utility provided with the Progress WebSpeed 3.0 development environment and transaction server. It allows WebSpeed administrators to remotely manage the WebSpeed system. The configuration utility has a vulnerability that allows unauthenticated users to configure services when the WSMAdmin function is invoked using wsisa.dll.--Affected Systems:Any system running Progress WebSpeed 3.0 WSIS Messenger Administration Utility.--Attack Scenarios:An attacker can access the WSIS Messenger Administration Utility, which can then be used to view and change WebSpeed configuration. The attackercan potentially stop WebSpeed services. --Ease of Attack:Simple. Exploits exist.--False Positives:If a legitimate remote user accesses the web-based administration utility, this rule may generate an event.--False Negatives:None known.--Corrective Action:Disable the WSIS Messenger Administration Utility.Install the appropriate patch. Patches can be found athttp://www.progress.com/patches/patchlst/availpatche.html.Disallow access to the WSIS Messenger Administration Utilility from sources external to the protected network.--Contributors:Original rule writer unknownModified by Brian Caswell <bmc@sourcefire.com>Sourcefire Research TeamSourcefire Technical Publications TeamNigel Houghton <nigel.houghton@sourcefire.com>--Additional References:Bugtraqhttp://www.securityfocus.com/bid/969CVEhttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-0127--