CVE-2018-11759: Path Traversal
A flaw was found in Apache Tomcat JK modjk Connector 1.2.0 to 1.2.44. The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (modjk) Connector did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via httpd, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing the application via the reverse proxy. It was also possible in some configurations for a specially constructed request to bypass the access controls configured in httpd. While there is some overlap between this issue and CVE-2018-1323, they are not identical.
References: https://lists.apache.org/thread.html/6d564bb0ab73d6b3efdd1d6b1c075d1a2c84ecd84a4159d6122529ad@%3Cannounce.tomcat.apache.org%3E
Other sources
The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (modjk) Connector 1.2.0 to 1.2.44 did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via httpd, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing the application via the reverse proxy. It was also possible in some configurations for a specially constructed request to bypass the access controls configured in httpd. While there is some overlap between this issue and CVE-2018-1323, they are not identical.
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is CVE-2018-11759?
CVE-2018-11759 is a vulnerability in the Apache Tomcat JK Connector that allows attackers to bypass access control restrictions.
What is the severity of CVE-2018-11759?
The severity of CVE-2018-11759 is high, with a CVSS score of 7.5.
How does CVE-2018-11759 affect Apache Web Server?
CVE-2018-11759 affects Apache Web Server (httpd) with the JK Connector enabled.
How do I fix CVE-2018-11759?
To fix CVE-2018-11759, upgrade the mod_jk package to version 1.2.46 or higher.
Where can I find more information about CVE-2018-11759?
You can find more information about CVE-2018-11759 at the following references: [link1](https://access.redhat.com/security/cve/CVE-2018-11759), [link2](https://lists.apache.org/thread.html/6d564bb0ab73d6b3efdd1d6b1c075d1a2c84ecd84a4159d6122529ad@%3Cannounce.tomcat.apache.org%3E), [link3](https://access.redhat.com/errata/RHSA-2019:0366).