Full Disclosure mailing list archives

Re: Partial Solution to SUID Problems


From: Valdis.Kletnieks () vt edu
Date: Sat, 06 Dec 2003 20:59:22 -0500

On Sun, 07 Dec 2003 01:59:50 +0100, Michal Zalewski said:

The way I handle this is creating several :0:0: accounts with separate
passwords. After login, they will all see themselves as the first user
with :0:0 in /etc/passwd, but utmp/wtmp/lastlog entries and syslog
messages would refer to the original login account.

That mostly works too, except many shops like to say "exactly 1 UID 0 account"
in /etc/passwd - it's a lot easier to flag "there must be exactly one" than
"there should be exactly as many as however many people have root access
this week".  Makes lots of fun at 3AM when the system-check cronjob
runs and says there's 6 users where there should be 5 :)

Attachment: _bin
Description:


Current thread: