Apache Tomcat mod_jk Invalid Transfer-Encoding Chunked Field DoS

This script is Copyright (C) 2003-2011 Tenable Network Security, Inc.


Synopsis :

The remote web server module has a denial of service vulnerability.

Description :

According to the banner, the remote host is using a vulnerable
version of the Apache mod_jk module. Such versions have a bug that
could allow a remote attacker to use chunked encoding requests to
desynchronize Apache and Tomcat, and therefore prevent the remote web
server from working properly.

See also :

http://archives.neohapsis.com/archives/bugtraq/2002-12/0045.html

Solution :

Upgrade to mod_jk 1.2.1 or later.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Web Servers

Nessus Plugin ID: 11519 ()

Bugtraq ID: 6320

CVE ID: CVE-2002-2272