GEN:SID 1:1831
Message WEB-MISC jigsaw dos attempt
Summary This event is generated when an attempt is made to exploit a Denial of Service (DoS) condition in the Jigsaw web server from W3C.
Impact Denial of Service.
Detailed Information Jigsaw is a Java-based web server developed by W3C. Jigsaw version 2.2.1 is vulnerable to a DoS attack caused by improper handling of requests for DOS device names.

Jigsaw web server versions prior to 2.2.1 (Build 20020711)  contain a Denial of Service vulnerability in a handler that processes HTTP requests for DOS device files. This may result in process threads hanging and a consumption of all available resources.

Affected Systems Jigsaw 2.2.1
Attack Scenarios It is possible to crash the Jigsaw web server by requesting /servlet/con about 30 times.
Ease of Attack Simple.
Corrective Action Upgrade to the latest version of Jigsaw (2.2.1 Build 20020711 or later)
Additional References Bugtraq:
http://www.securityfocus.com/bid/5258/
Rule References nessus: 11047