CVE-2021-21086 Exploit

This exploit allows to execute a shellcode in the context of the rendering process of Adobe Acrobat Reader DC 2020.013.20074 and earlier versions on Windows 10. Note: the shellcode used in this example pops a calc. For it to work you must disable Adobe Reader's sandbox or you can replace it with other shellcode. You can see it in action (with the sandbox disabled) here

For more info on how it works, read our blogpost.

How to use:

1. Generate exploit charstring: python3 .\generate_exploit_charstring.py --output charstring.
2. Embed charstring into a pdf file: python3 .\charstring2pdf.py --filename .\charstring --out exploit.pdf.
3. Open pdf file with Adobe Reader DC.