CVE-2018-11759
libapache-mod-jk - security update
Description
The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (mod_jk) 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.
How to fix CVE-2018-11759
To remediate CVE-2018-11759, upgrade the affected package to a fixed version below.
- —upgrade to 1:1.2.46-1 or later
- —upgrade to 1:1.2.46-0+deb8u1 or later
- —upgrade to 1:1.2.46-0+deb9u1 or later
Is CVE-2018-11759 being exploited?
Likely — EPSS is 94.2%, placing CVE-2018-11759 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1:1.2.46-1
- from 0, < 1:1.2.46-0+deb8u1
- from 0, < 1:1.2.46-0+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |