This is an exploit created for CVE-2021-4034 meant as a POC. It is based off the info at https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt.
- Download the exploit folder. Compile prog.c with
gcc prog.c - Go to the GCONV_PATH=. folder and ensure that the "code" file is executable (chmod +x code).
- Go to the "code" folder and compile payload.c with
gcc payload.c -o payload.so -shared -fPIC - Note: You'll probably want to change "YOUR_USERNAME" in payload.c if you actually want to see if it works.
- After all of this is set, go back to the main folder, and run the program with
./a.out. Note: You can rename this file, a.out is simply the default name from GCC.