Patchfirst
CVE-2018-11759 Public exploit EPSS 90.6%

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

Apache Software Foundation · Apache Tomcat Connectors

Summary

The Apache Tomcat Connectors product's mod_jk (Apache Tomcat JK) Connector, in the Apache Web Server (httpd) code that normalises request paths before matching them to the URI-worker map, mishandles some edge cases. Where only a subset of Tomcat URLs is exposed through httpd, a specially constructed request can reach application functionality not intended for clients using the reverse proxy, and in some configurations it can also bypass access controls configured in httpd.

Official description · CVE.org

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.

Breakdown
60.0 / 100
Exploited
Yes, in VulnCheck KEV
Reports
0
Tactics
0/15

First seen exploited 5 years after disclosure. Public exploit code (PoC-in-GitHub) appeared 1 day after disclosure.

  1. Disclosedday 0
  2. Public exploit codePoC-in-GitHub+1 day
  3. First seen exploitedVulnCheck KEV evidence+5 yrs

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

References

13 links, grouped by NVD tag
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