Apache Tomcat 6.0.x < 6.0.42 Handling Request Smuggling DoS

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote Apache Tomcat server is affected by a denial of service
vulnerability.

Description :

According to its self-reported version number, the Apache Tomcat
server running on the remote host is 6.0.x prior to version 6.0.42. It
is, therefore, affected by a flaw in 'ChunkedInputFilter.java' due to
improper handling of attempts to continue reading data after an error
has occurred. A remote attacker, using streaming data with malformed
chunked transfer coding, can exploit this to conduct HTTP request
smuggling or cause a denial of service.

Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.

See also :

http://seclists.org/bugtraq/2015/Feb/65
http://tomcat.apache.org/tomcat-6.0-doc/changelog.html

Solution :

Update to Apache Tomcat version 6.0.43 or later.

Note that while version 6.0.42 fixes the issue, it was not officially
released, and the vendor recommends upgrading to 6.0.43 or later.

Risk factor :

Medium / CVSS Base Score : 6.4
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P)
CVSS Temporal Score : 4.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Web Servers

Nessus Plugin ID: 81579 ()

Bugtraq ID: 72717

CVE ID: CVE-2014-0227

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