Re: ** FreeBSD local r00t zeroday

[Oliver Pinter <oliver.pinter () gmail com>]

On Tuesday 01 December 2009 06.45.38 bk wrote:
> On Nov 30, 2009, at 9:25 PM, David Berard wrote:
> > > 7.0 not vuln.
> >
> > 7.0 vulnerable here,
> >
> > $ ./env
> > /libexec/ld-elf.so.1: environment corrupt; missing value for
> > /libexec/ld-elf.so.1: environment corrupt; missing value for
> > /libexec/ld-elf.so.1: environment corrupt; missing value for
> > /libexec/ld-elf.so.1: environment corrupt; missing value for
> > /libexec/ld-elf.so.1: environment corrupt; missing value for
> > ALEX-ALEX
> > # uname -r
> > 7.0-RELEASE-p3
>
> Here as well:
>
> bin/Kingcope.sh: new file: 35 lines, 772 characters.
> [chort@demon ~]$ chmod +x bin/Kingcope.sh
> [chort@demon ~]$ Kingcope.sh
> bin ktrace.out scratch vent_stalk FreeBSD local r00t zeroday
> by Kingcope
> November 2009
> env.c: In function 'main':
> env.c:5: warning: incompatible implicit declaration of built-in function
> 'malloc' env.c:9: warning: incompatible implicit declaration of built-in
> function 'strcpy' env.c:11: warning: incompatible implicit declaration of
> built-in function 'execl' /libexec/ld-elf.so.1: environment corrupt;
> missing value for
> /libexec/ld-elf.so.1: environment corrupt; missing value for
> /libexec/ld-elf.so.1: environment corrupt; missing value for
> /libexec/ld-elf.so.1: environment corrupt; missing value for
> /libexec/ld-elf.so.1: environment corrupt; missing value for
> ALEX-ALEX
> # whoami
> root
> # uname -a
> FreeBSD demon.smtps.net 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24
> 19:59:52 UTC 2008    
> root () logan cse buffalo edu:/usr/obj/usr/src/sys/GENERIC  i386
>
> It's a VM if that matters.
>
> --
> chort
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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with cpercivals patch:

op@oliverp exploit> ./local_root_exploit_env.sh
local_root_exploit_env.sh FreeBSD local r00t zeroday
by Kingcope
November 2009
env.c: In function 'main':
env.c:5: warning: incompatible implicit declaration of built-in 
function 'malloc'
env.c:9: warning: incompatible implicit declaration of built-in 
function 'strcpy'
env.c:11: warning: incompatible implicit declaration of built-in 
function 'execl'
/libexec/ld-elf.so.1: environment corrupt; missing value for
/libexec/ld-elf.so.1: environment corrupt; aborting


-- 
thanks,
Oliver

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/