Once you've downloaded ysoserial-0.0.4-all.jar , you can use it to generate payloads for various Java deserialization vulnerabilities. A basic usage example:
are frequently cited in walkthroughs for older vulnerabilities, such as CVE-2016-2173 (Spring AMQP RCE) Security Warning is a powerful tool intended strictly for authorized security testing and educational purposes ysoserial-0.0.4-all.jar download
This command outputs a stream of raw bytes. You would typically pipe this output into a file or a network request sent to the vulnerable target application. Once you've downloaded ysoserial-0
public static void main(String[] args) throws Exception // Replace with your generated payload byte[] payload = ...; Once you've downloaded ysoserial-0.0.4-all.jar