taggit Summary
As 21.04 is still under development, Ubuntu Security Tech Lead Alex Murray has shared a new change that he proposed last year and is now included for the upcoming Ubuntu 21.04 and onwards. In this new change, he has updated adduser and shadow packages to change the home directories default permission from 755 (rwxr-xr-x) to 750 (rwxr-x—) when it is created using either adduser or useradd utility. This simply means if you install Ubuntu 21.04 from scratch and create new users, its home directories will no longer be readable and executable by other users on the same system, which was earlier world-readable by default. But now, after more than 14 years considering Ubuntu’s significant customer and userbase in public cloud and server spaces, and having better security, Ubuntu team has decided to stop creating world-readable home directories starting from Hirsute Hippo.