Apache Tomcat 6.0.x < 6.0.42 Handling Request Smuggling DoS
Medium Nessus Plugin ID 81579
SynopsisThe remote Apache Tomcat server is affected by a denial of service vulnerability.
DescriptionAccording 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.
SolutionUpdate 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.