cat /etc/doas.conf
Just like with sudo , you should cross-reference the allowed command with GTFOBins . If doas permits cp , cat , find , git , or man without password sanitization, you can likely read files or spawn shells.
If keepenv is set, doas keeps LD_PRELOAD , LD_LIBRARY_PATH , PYTHONPATH , etc. hacktricks doas
Preserved environment variables like LD_PRELOAD , LD_LIBRARY_PATH , PYTHONPATH , or BASH_ENV can alter the behavior of the allowed binary.
The configuration file is located at /etc/doas.conf . It requires strict permissions to ensure security. Step 1: Create the Config File doas touch /etc/doas.conf Use code with caution. Step 2: Set Strict Permissions cat /etc/doas
permit keepenv user1 cmd /usr/bin/crontab -e
doas /usr/bin/python3 -c 'import pty;pty.spawn("/bin/sh")' Step 1: Create the Config File doas touch /etc/doas
This article serves as a comprehensive guide based on techniques often highlighted on resources like HackTricks to help you understand, install, and securely configure doas on Linux. What is doas and Why Use It?