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Unscored Scanner template Public exploit CVE-2018-11759 EUVD-2018-3777GHSA-5q2c-33mg-8m75

The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK…

Published Oct 31, 2018 · Updated Aug 5, 2024 · Assigned by apache

Vendor: Apache Software Foundation Product: Apache Tomcat Connectors Package: libapache-mod-jk Ecosystem: Debian

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.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache Tomcat Connectors Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 libapache-mod-jk 1:1.2.46-1 —
Debian 13 libapache-mod-jk 1:1.2.46-1 —
Debian 12 libapache-mod-jk 1:1.2.46-1 —
Debian 9 libapache-mod-jk 1:1.2.46-0+deb9u1 DSA-4357-1
Debian 8 libapache-mod-jk 1:1.2.46-0+deb8u1 DLA-1609-1

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
Red Hat JBoss Core Services 1 jbcs-httpd24 +1 1-6.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-apache-commons-daemon-jsvc 1:1.1.0-3.redhat_2.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-apr +1 1.6.3-31.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-apr-util +8 1.6.1-24.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-httpd +6 2.4.29-35.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_cluster-native 1.3.8-3.Final_redhat_2.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_jk +2 1.2.46-1.redhat_1.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_ssl +1 1:2.4.29-35.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-nghttp2 +1 1.29.0-9.jbcs.el6 RHSA-2019:0367
Red Hat JBoss Core Services 1 jbcs-httpd24-openssl +4 1:1.0.2n-14.jbcs.el6 RHSA-2019:0367

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP5 apache2-mod_jk 1.2.49-150100.6.6.1 SUSE-SU-2023:4513-1
SLES 15 SP4 apache2-mod_jk 1.2.49-150100.6.6.1 SUSE-SU-2023:4513-1
SLES 15 apache2-mod_jk 1.2.43-3.3.1 SUSE-SU-2018:3969-1
SLES 12 SP4 apache2-mod_jk 1.2.40-7.3.1 SUSE-SU-2018:3963-2
SLES 11 SP4 apache2-mod_jk 1.2.40-0.2.5.1 SUSE-SU-2018:3970-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 12 SP4 apache2-mod_jk 1.2.40-7.3.1 SUSE-SU-2018:3963-2
SLES for SAP 11 SP4 apache2-mod_jk 1.2.40-0.2.5.1 SUSE-SU-2018:3970-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed apache2-mod_jk 1.2.48-2.9 openSUSE-SU-2024:10625-1
openSUSE Leap 15.5 apache2-mod_jk 1.2.49-150100.6.6.1 SUSE-SU-2023:4513-1
openSUSE Leap 15.4 apache2-mod_jk 1.2.49-150100.6.6.1 SUSE-SU-2023:4513-1

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 3 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 9

References