[thredds] Fwd: [SECURITY] CVE-2023-41081 Apache Tomcat Connectors (mod_jk) Information Disclosure

• To: THREDDS community <thredds@xxxxxxxxxxxxxxxx>
• Subject: [thredds] Fwd: [SECURITY] CVE-2023-41081 Apache Tomcat Connectors (mod_jk) Information Disclosure
• From: Jennifer Oxelson Ganter <oxelson@xxxxxxxx>
• Date: Wed, 13 Sep 2023 13:19:29 -0600

Hello all,

If you have your TDS server behind a reverse proxy and are using mod_jdk,
please note the following CVE for the associated connector.



---------- Forwarded message ---------
From: Mark Thomas <markt@xxxxxxxxxx>
Date: Wed, Sep 13, 2023 at 3:30 AM
Subject: [SECURITY] CVE-2023-41081 Apache Tomcat Connectors (mod_jk)
Information Disclosure
To: users@xxxxxxxxxxxxxxxxx <users@xxxxxxxxxxxxxxxxx>
Cc: announce@xxxxxxxxxxxxxxxxx <announce@xxxxxxxxxxxxxxxxx>, <
announce@xxxxxxxxxx>, dev@xxxxxxxxxxxxxxxxx <dev@xxxxxxxxxxxxxxxxx>


CVE-2023-41081 Apache Tomcat Connectors (mod_jk) Information Disclosure

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
- Apache Tomcat Connectors mod_jk Connector 1.2.0 to 1.2.48

Description:
In some circumstances, such as when a configuration included
"JkOptions +ForwardDirectories" but the configuration did not provide
explicit mounts for all possible proxied requests, mod_jk would use an
implicit mapping and map the request to the first defined worker. Such
an implicit mapping could result in the unintended exposure of the
status worker and/or bypass security constraints configured in httpd. As
of JK 1.2.49, the implicit mapping functionality has been removed and
all mappings must now be via explicit configuration.
Only mod_jk is affected by this issue. The ISAPI redirector is not affected .

Mitigation:
Users of affected versions should apply one of the following mitigations:
- Upgrade to Apache Tomcat Connector (mod_jk) 1.2.49 or later.
- Ensure explicit mounts are configured for all possible proxied
   requests

Credit:
This vulnerability was reported responsibly to the Tomcat security team
by Karl von Randow.

References:
[1] http://tomcat.apache.org/security-jk.html