THREATPORT/VULNERABILITY/CVE-2018-1323
HIGH SEVERITY

CVE-2018-1323

Tomcat Jk Connector vulnerability

CVSS
7.5
EPSS
43.0%
EPSS pct
99th
Exploited
No known
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.
Affected vendor
Apache
Affected product
Tomcat Jk Connector
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
  • CWE-22 — Path Traversal
  • CWE-200 — Exposure of Sensitive Information
Published
2018-03-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 43.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2018-1323

  • Confirm whether Apache Tomcat Jk Connector is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-1323.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-1323

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