SECURITY BUG IN INTERACTIVE UNIX SYSV386

Sean Eric Fagan sef at kithrup.COM
Fri Feb 15 07:16:02 AEST 1991


In article <1991Feb13.221259.1462 at scuzzy.in-berlin.de> src at scuzzy.in-berlin.de (Heiko Blume) writes:
>not exactly, for public access to my source archive i've set up
>a chroot() user that can't write anywhere, unhackable :-)

Sorry, that's not the case.  Once you've got root access, you can go through
and do lots of nasty things, including setting u.u_rdir to something useful,
like '/'.  Figuring out how to do so is left as an excercise for the reader.

-- 
Sean Eric Fagan  | "I made the universe, but please don't blame me for it;
sef at kithrup.COM  |  I had a bellyache at the time."
-----------------+           -- The Turtle (Stephen King, _It_)
Any opinions expressed are my own, and generally unpopular with others.



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