theoretical question - can root's username be changed?
Markku Kolkka
markkuk at tuubi.net
Fri Dec 2 06:47:09 UTC 2005
Claude Jones kirjoitti viestissään (lähetysaika perjantai, 2.
joulukuuta 2005 06:16):
> Why the word 'feeble'? If everyone in the
> Linux world knows that the chance is good that there is a user
> called 'root' on any given Linux box, and that user has nearly
> unrestrained privileges, why would it be feeble to double the
> guessing that must go on to get at root's privileges, by
> changing his username.
Because the privileges are bound to UID=0, not to any particular
username. Changing the username doesn't add security in any way
because root exploits try to change the effective UID to 0 or
try to change the operation of a process already running at UID
0.
--
Markku Kolkka
markku.kolkka at iki.fi
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