What’s Vulnerable › Vulnerabilities

CVE-2017-12617: Apache Tomcat Remote Code Execution Vulnerability

Description

When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default servlet to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.

Affected products

How to fix

Upgrade to a fixed version: Apache Tomcat 7.0.82, 8.0.47, 8.5.23, 9.0.1. Check the vendor advisory for mitigations.

References

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