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Merge pull request #276 from clem9669/patch-5 

Adding marshalsec tool & references
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Swissky 2020-10-26 16:35:02 +01:00 committed by GitHub
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Insecure Deserialization/Java.md
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@ -65,6 +65,38 @@ JexBoss - JBoss (and others Java Deserialization Vulnerabilities) verify and EXp
ysoserial-modified [https://github.com/pimps/ysoserial-modified](https://github.com/pimps/ysoserial-modified)
Java Unmarshaller Security: Turning your data into code execution - [https://github.com/mbechler/marshalsec](https://github.com/mbechler/marshalsec)
```java
java -cp target/marshalsec-0.0.1-SNAPSHOT-all.jar marshalsec.<Marshaller> [-a] [-v] [-t] [<gadget_type> [<arguments...>]]
where
-a - generates/tests all payloads for that marshaller
-t - runs in test mode, unmarshalling the generated payloads after generating them.
-v - verbose mode, e.g. also shows the generated payload in test mode.
gadget_type - Identifier of a specific gadget, if left out will display the available ones for that specific marshaller.
arguments - Gadget specific arguments
```
Payload generators for the following marshallers are included:<br />
| Marshaller | Gadget Impact
| ------------------------------- | ----------------------------------------------
| BlazeDSAMF(0&#124;3&#124;X) | JDK only escalation to Java serialization<br/>various third party libraries RCEs
| Hessian&#124;Burlap | various third party RCEs
| Castor | dependency library RCE
| Jackson | **possible JDK only RCE**, various third party RCEs
| Java | yet another third party RCE
| JsonIO | **JDK only RCE**
| JYAML | **JDK only RCE**
| Kryo | third party RCEs
| KryoAltStrategy | **JDK only RCE**
| Red5AMF(0&#124;3) | **JDK only RCE**
| SnakeYAML | **JDK only RCEs**
| XStream | **JDK only RCEs**
| YAMLBeans | third party RCE
## References
- [Github - ysoserial](https://github.com/frohoff/ysoserial)
@ -72,3 +104,5 @@ ysoserial-modified [https://github.com/pimps/ysoserial-modified](https://github.
- [Understanding & practicing java deserialization exploits](https://diablohorn.com/2017/09/09/understanding-practicing-java-deserialization-exploits/)
- [How i found a 1500$ worth Deserialization vulnerability - @D0rkerDevil](https://medium.com/@D0rkerDevil/how-i-found-a-1500-worth-deserialization-vulnerability-9ce753416e0a)
- [Misconfigured JSF ViewStates can lead to severe RCE vulnerabilities - 14 Aug 2017, Peter Stöckli](https://www.alphabot.com/security/blog/2017/java/Misconfigured-JSF-ViewStates-can-lead-to-severe-RCE-vulnerabilities.html)
- [Jackson CVE-2019-12384: anatomy of a vulnerability class](https://blog.doyensec.com/2019/07/22/jackson-gadgets.html)
- [On Jackson CVEs: Don’t Panic — Here is what you need to know](https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062#da96)