Apache Tomcat Connectors: Unexpected use of first declared worker in mod_jk for unmapped request
CVE-2023-41081

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Tomcat Connectors
Vendor
CVE Published:
13 September 2023

What is CVE-2023-41081?

The mod_jk component of Apache Tomcat Connectors allows for an authentication bypass under specific configuration conditions. If 'JkOptions +ForwardDirectories' is used without providing explicit mounts for all proxied requests, mod_jk defaults to an implicit mapping. This can inadvertently expose the status worker and compromise security constraints set in Apache HTTP Server. Users are advised to upgrade to mod_jk version 1.2.49 or later, where the problematic implicit mapping functionality has been eliminated, ensuring all mappings require explicit configuration.

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Affected Version(s)

Apache Tomcat Connectors 1.2.0 <= 1.2.48

References

https://lists.apache.org/thread/rd1r26w7271jyqgzr4492tooy...
vendor-advisory
https://www.openwall.com/lists/oss-security/2023/09/13/2
https://lists.debian.org/debian-lts-announce/2023/09/msg0...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Karl von Randow
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