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

2023-09-1309:30:05

apache

www.cve.org

apache tomcat connectors

mod_jk

authentication bypass

cve-2023-41081

implicit mapping

security constraints

upgrade

isapi redirector

configuration

vulnerability

1.2.49

AI Score

7.9

Confidence

High

EPSS

0.002

Percentile

61.9%

JSON

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

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Apache Tomcat Connectors",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "1.2.48",
        "status": "affected",
        "version": "1.2.0",
        "versionType": "semver"
      }
    ]
  }
]