Apache Tomcat 7.x < 7.0.21 Arbitrary AJP Message Control
High Nessus Plugin ID 56070
SynopsisThe remote web server is affected by an authentication bypass vulnerability that allows an attacker to have control over AJP messages.
DescriptionAccording 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.
SolutionUpgrade to Apache Tomcat version 7.0.21 or later.