Apache Struts2 S2-054(CVE-2017-15707)

Summary

A crafted JSON request can be used to perform a DoS attack when using the Struts REST plugin

Problem

The REST Plugin is using an outdated JSON-lib library which is vulnerable and allow perform a DoS attack using malicious request with specially crafted JSON payload.

Solution

Upgrade to Apache Struts version 2.5.14.1. Another solution is to use the Jackson handler instead of the default JSON-lib handler as described here.

Backward compatibility

No backward incompatibility issues are expected.

Workaround

Use Jackson handler instead of the default JSON-lib handler as described here.