Path Traversal in Apache Tomcat Jk Connector
CVE-2018-1323
The IIS/ISAPI specific code in the Apache Tomcat JK ISAPI Connector 1.2.0 to 1.2.42 that normalised the requested path before matching it to the URI-worker map did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via IIS, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing Tomcat via the reverse proxy.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.674 (99.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Apache Tomcat_jk_connector
- Apache Software Foundation Tomcat Connectors — versions Apache Tomcat JK ISAPI Connector 1.2.0 to 1.2.42
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_MISC)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2018-1323?
- CVE-2018-1323 is a high-severity vulnerability in Apache Tomcat Jk Connector, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-03-12.
- How severe is CVE-2018-1323?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-1323 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.