CVE-2021-21341 PoC — XStream can cause a Denial of Service

Source

https://github.com/Mani1325/ka-cve-2021-21341

Associated Vulnerability

Title:XStream can cause a Denial of Service (CVE-2021-21341)
Description: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.

Readme

# ka-cve-2021-21341

File Snapshot


 [4.0K]  /data/pocs/fb87fba85bc9d77dcaf6f7d490f3d99ea10d06d4
├── [1.1K]  dependency-reduced-pom.xml
├── [ 131]  Dockerfile
├── [1.6K]  pom.xml
├── [  19]  README.md
├── [4.0K]  src
│   └── [4.0K]  main
│       └── [4.0K]  java
│           └── [1.9K]  main.java
└── [4.0K]  target
    ├── [4.0K]  classes
    │   └── [1.5K]  main.class
    ├── [4.0K]  maven-archiver
    │   └── [ 110]  pom.properties
    ├── [4.0K]  maven-status
    │   └── [4.0K]  maven-compiler-plugin
    │       └── [4.0K]  compile
    │           └── [4.0K]  default-compile
    │               ├── [  11]  createdFiles.lst
    │               └── [  52]  inputFiles.lst
    ├── [2.5K]  original-xstream-1.0-SNAPSHOT.jar
    └── [651K]  xstream-1.0-SNAPSHOT.jar

10 directories, 11 files

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