In this example, we use ysoserial to generate a payload that will execute the command bash -c 'echo vulnerable > exploit.txt' when deserialized. The resulting payload is saved to a file called exploit.ser .
Suppose we have a vulnerable application that deserializes user-input data without proper validation. We can use ysoserial to generate a malicious payload that will execute a system command when deserialized. ysoserial-0.0.4-all.jar download
For users who have never worked with this tool before, here is a complete walkthrough: In this example, we use ysoserial to generate
java -jar ysoserial-0.0.4-all.jar CommonsCollections1 'calc.exe' > payload.bin In this example: CommonsCollections1 is the gadget chain being used. In this example