Full Disclosure mailing list archives
Re: Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 )
From: advisory <advisory () dyadsecurity com>
Date: Wed, 12 Jul 2006 19:31:57 -0700
it would help if the exploit bothered to invoke bash (/bin/sh on almost all linux distros) with -p so that it didnt drop euid root. There are alot of reasons why this shouldnt work on selinux, using a strict policy, other than (file?) contexts. "\n* * * * * root /bin/sh /tmp/commands_to_run_as_root.sh;exit;\n" might work better as a payload. <3 advisory. On Thu, 13 Jul 2006 01:23:10 +0300 Ariel Biener <ariel () post tau ac il> wrote:
On Wednesday 12 July 2006 03:15, Roman Medina-Heigl Hernandez wrote: Ignore my previous post, it does create a setuid bash version in /tmp/sh, the reason it doesn't work is due to SELinux contexts. --ArielMaybe this is obvious for Paul Starzetz (as well as many other people) but full-disclosure is not really "full" without exploit code. Working exploit attached. You can also download it from: http://www.rs-labs.com/exploitsntools/rs_prctl_kernel.c Greetz to !dSR ppl :-)-- -- Ariel Biener e-mail: ariel () post tau ac il PGP: http://www.tau.ac.il/~ariel/pgp.html _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
-- Jack - jack () rapturesecurity org _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 ) Roman Medina-Heigl Hernandez (Jul 11)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 ) Ariel Biener (Jul 12)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 ) Ariel Biener (Jul 12)
- Re: Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 ) advisory (Jul 12)
- Re: Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t Exploit ( BID 18874 / CVE-2006-2451 ) Jon Hart (Jul 12)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround lars brun nielsen (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Matthew Murphy (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Michal Zalewski (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Matthew Murphy (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround PERFECT . MATERIAL (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Kyle Lutze (Jul 13)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Jon Hart (Jul 14)
- Re: Linux Kernel 2.6.x PRCTL Core Dump Handling - simple workaround Matthew Murphy (Jul 13)