Exploiting Insecure Deserialization When to Use - During authorized penetration tests when applications process serialized data (cookies, API parameters, message queues) - When identifying Java serialization markers ( / ) in HTTP traffic - For testing PHP applications that use on user-controlled input - When evaluating .NET applications using , , or - During security assessments of applications using pickle (Python), Marshal (Ruby), or YAML deserialization Prerequisites - Authorization : Written penetration testing agreement with RCE testing scope - ysoserial : Java deserialization exploit to…