mpgn

Scrambled vs NetExec

Let pwn the box Scrambled from HackTheBox using only NetExec ! For context, I was reading Scrambled writeup from 0xdf_ when I read this:

smbclient won’t work, and I wasn’t able to get crackmapexec to work either.

To be fair, at the time of his writeup it was true, but not anymore and it's pretty simple with NXC, 5 minutes and you get root :)

Note: I will pass the web part where we get one username : ksimpson

leesh3288

Sandbox Escape in vm2@3.9.16

Summary

There exists a vulnerability in exception sanitization of vm2 for versions up to 3.9.16, allowing attackers to raise an unsanitized host exception inside handleException() which can be used to escape the sandbox and run arbitrary code in host context.

Proof of Concept