this post was submitted on 01 Jul 2023
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It is a much simpler program than sudo. A simpler and less complicated implementation means less vulnerabilities.
sudo had some serious vulnerabilities in the past: https://www.helpnetsecurity.com/2021/01/27/cve-2021-3156/
Can you actually remove sudo from a system without breaking stuff? I can image there's some stuff, scripts etc that depends on it. Unless you can alias it away?
Used doas for about 4 years now and never had an issue like that. The default config passes environment variables differently to sudo, but after I added the correct setting for that to doas.conf it has been identical to sudo in everything.
If it caused issues for you you could link sudo to doas in bin, no script should ever use sudo -i right?
I use my Linux system without sudo, it does break some (badly written) scripts. You can fix it by either creating a symlink in your path or replacing sudo to doas on those scripts.
But I rarely encounter these issues. Usually system applications won't be affecting by a missing sudo binary, as their privileges are typically managed by polkit or similar.