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The remote web server is potentially affected by several
According to its self-reported version number, the instance of Apache
Tomcat 6.x listening on the remote host is earlier than 6.0.35 and is,
therefore, potentially affected by multiple vulnerabilities.
- Specially crafted requests are incorrectly processed
by Tomcat and can cause the server to allow injection
of arbitrary AJP messages. This can lead to
authentication bypass and disclosure of sensitive
information. Note this vulnerability only occurs when
the following are true (CVE-2011-3190):
- the org.apache.jk.server.JkCoyoteHandler AJP
connector is not used.
- POST requests are accepted.
- the request body is not processed.
- An information disclosure vulnerability exists. Request
information is cached in two objects and these objects
are not recycled at the same time. Further requests can
obtain sensitive information if certain error conditions
- Large numbers of crafted form parameters can cause
excessive CPU consumption due to hash collisions.
Note that Nessus did not actually test for these flaws but instead has
relied on the version in Tomcat's banner or error page.
See also :
Upgrade to Apache Tomcat version 6.0.35 or later.
Risk factor :
High / CVSS Base Score : 7.5
CVSS Temporal Score : 6.5
Public Exploit Available : true
Family: Web Servers
Nessus Plugin ID: 57080 ()
Bugtraq ID: 49353512005144251447
CVE ID: CVE-2011-3190CVE-2011-3375CVE-2011-4858CVE-2012-0022
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