Apache Tomcat 7.x < 7.0.21 Arbitrary AJP Message Control

High Nessus Plugin ID 56070

Synopsis

The remote web server is affected by an authentication bypass vulnerability that allows an attacker to have control over AJP messages.

Description

According to its self-reported version number, the instance of Apache Tomcat 7.x listening on the remote host is prior to 7.0.21. It is, therefore, affected by a vulnerability that allows an attacker to have control over AJP messages.

Specially crafted requests are incorrectly processed by Tomcat and can cause the server to allow injection of arbitrary AJP messages. This can lead to an authentication bypass and the disclosure of sensitive information.

Note that this vulnerability only occurs when the following are true :

- the org.apache.jk.server.JkCoyoteHandler AJP connector is not used.

- POST requests are accepted.

- the request body is not processed.

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

Solution

Upgrade to Apache Tomcat version 7.0.21 or later.

See Also

https://bz.apache.org/bugzilla/show_bug.cgi?id=51698

http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.21

Plugin Details

Severity: High

ID: 56070

File Name: tomcat_7_0_21.nasl

Version: 1.13

Type: remote

Family: Web Servers

Published: 2011/09/02

Updated: 2018/11/15

Dependencies: 39446

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3.0

Base Score: 7.3

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:tomcat

Required KB Items: installed_sw/Apache Tomcat, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/09/01

Vulnerability Publication Date: 2011/08/20

Reference Information

CVE: CVE-2011-3190

BID: 49353