{"id":"UBUNTU-CVE-2023-41081","details":"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","modified":"2026-01-30T02:27:33.445340Z","published":"2023-09-13T10:15:00Z","related":["USN-6826-1"],"upstream":["CVE-2023-41081"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-41081"},{"type":"REPORT","url":"https://lists.apache.org/thread/rd1r26w7271jyqgzr4492tooyt583d8b"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2023/09/13/2"},{"type":"REPORT","url":"https://tomcat.apache.org/security-jk.html#Fixed_in_Apache_Tomcat_JK_Connector_1.2.49"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-41081"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6826-1"}],"affected":[{"package":{"name":"libapache-mod-jk","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libapache-mod-jk@1:1.2.41-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.41-1ubuntu0.1~esm1"}]}],"versions":["1:1.2.40+svn150520-1","1:1.2.41-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-jk","binary_version":"1:1.2.41-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-41081.json"}},{"package":{"name":"libapache-mod-jk","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libapache-mod-jk@1:1.2.43-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.43-1ubuntu0.1~esm1"}]}],"versions":["1:1.2.42-1","1:1.2.43-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1:1.2.43-1ubuntu0.1~esm1","binary_name":"libapache2-mod-jk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-41081.json"}},{"package":{"name":"libapache-mod-jk","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libapache-mod-jk@1:1.2.46-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.46-1ubuntu0.1"}]}],"versions":["1:1.2.46-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.2.46-1ubuntu0.1","binary_name":"libapache2-mod-jk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-41081.json"}},{"package":{"name":"libapache-mod-jk","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libapache-mod-jk@1:1.2.48-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.48-1ubuntu0.1"}]}],"versions":["1:1.2.48-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.2.48-1ubuntu0.1","binary_name":"libapache2-mod-jk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-41081.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}