Apache Tomcat 6.0.x < 6.0.42 Handling Request Smuggling DoS

medium Nessus Network Monitor Plugin ID 8671

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

Solution

Update to Apache Tomcat version 6.0.43 or later.\n\nNote 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.

See Also

https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.43

https://seclists.org/bugtraq/2015/Feb/65,http://tomcat.apache.org/tomcat-6.0-doc/changelog.html,https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.43

Plugin Details

Severity: Medium

ID: 8671

Family: Web Servers

Published: 4/10/2015

Updated: 5/20/2019

Nessus ID: 81579

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

Patch Publication Date: 11/14/2014

Vulnerability Publication Date: 2/9/2015

Reference Information

CVE: CVE-2014-0227

BID: 72717

IAVA: 2016-A-0226