CVE-2021-21341

EIP tracks 1 public exploit for CVE-2021-21341. PoCs published by s-index.

AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2021-21341, a Denial of Service (DoS) vulnerability in XStream. The exploit leverages a manipulated ByteArrayInputStream to trigger an endless loop during deserialization, demonstrating the vulnerability in versions up to 1.4.15.

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.