My os is Fedora 24 and I tried to test the suid bit functionality.
I wrote below bash as Setuid.bash:
#!/bin/bash if [ $USER = 'root' ] then echo "Like Root Run" echo "Root User Add in " $(date) >> /etc/SetUid else echo "Other User Run" echo $USER "User Add in " $(date) >> /etc/SetUid fi
-rwsrw-r-x. 1 root root 249 May 21 14:45 /bin/Setuid.bash permission and
-rwx------. 1 root root 432 May 21 14:45 /etc/SetUid
Now, when I tried
/bin/Setuid.bash as root I got:
Like Root Run
but when run that with Test user I encountered:
Other User Run
bin/Setuid.bash: line 8: /etc/SetUid: Permission denied
I'll appreciate if any one let me know, where is my way wrong?