### [CVE-2021-3287](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3287) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen) ### Description Zoho ManageEngine OpManager before 12.5.329 allows unauthenticated Remote Code Execution due to a general bypass in the deserialization class. ### POC #### Reference - http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html #### Github - https://github.com/20142995/nuclei-templates - https://github.com/ARPSyndicate/cvemon - https://github.com/AdeliaNitzsche/Java-Deserialization-Cheat-Sheet - https://github.com/BrittanyKuhn/javascript-tutorial - https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet - https://github.com/cyb3r-w0lf/nuclei-template-collection