Setuid on expreserve and exrecover

Jerry Carlin jmc at ptsfa.PacBell.COM
Fri Jul 15 01:08:20 AEST 1988


In article <794 at pttesac.UUCP> robert at pttesac.UUCP (Robert Rodriguez) writes:
>Does anyone know the reason for /usr/lib/ex*preserve being
>set-user-id bin or root ?

Needed on BSD but not on System V due to chown() requiring root privileges. 

Do us all a favor and if you are a V. system chmod 555 ex*preserve and
chmod 777 /usr/preserve.  ex*preserve has a well-known security problem.
If any vendor is still delivering systems with ex*preserve setuid they
should be shot at sunrise.

-- 
Jerry Carlin (415) 823-2441 {bellcore,sun,ames,pyramid}!pacbell!jmc
To dream the impossible dream. To fight the unbeatable foe.



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