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Date: Thu, 28 Sep 2023 16:45:36 -0400
From: Christopher Schultz <chris@...istopherschultz.net>
To: oss-security@...ts.openwall.com
Subject: CVE-2023-41081: Apache Tomcat Connectors: Unexpected use of first
declared worker in mod_jk for unmapped request [CORRECTION]
Severity: important
Affected versions:
- Apache Tomcat Connectors 1.2.0 through 1.2.48
Description:
Important: Authentication Bypass CVE-2023-41081
The mod_jk component of Apache Tomcat Connectors 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.
This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0
through 1.2.48.
Users are recommended to upgrade to version 1.2.49, which fixes the issue.
History
2023-09-13 Original advisory
2023-09-28 Updated summary
Credit:
Karl von Randow (finder)
References:
https://lists.apache.org/thread/rd1r26w7271jyqgzr4492tooyt583d8b
https://tomcat.apache.org/
https://www.cve.org/CVERecord?id=CVE-2023-41081
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