[Dailydave] Remote kernel bug in SCTP?

sgrakkyu sgrakkyu at openssl.it
Mon Apr 27 21:49:37 EDT 2009


dave wrote:
> Did everyone else already know about this bug? So you connect to an SCTP
> endpoint, then send a packet to overwrite arbitrary kernel data? That'd
> be cool.
> 
> This is where Phillipe tells us about his scanner from 2002. :>
> 
> -dave
> 

Hi everybody, I saw some stream of mails wondering about this SCTP
issue: some sayin' it's a D.o.S., some other thinking about a local
exploit.
It started as a challenge and it ended up as a lot of fun and a reliable
one-shot remote exploit for Linux SLUB/SLABs

Here you go the link: http://sgrakkyu.antifork.org/sctp_houdini.c
(it covers x86-64 kernels only)

and here you go a small blog post I made for it:
http://kernelbof.blogspot.com
More details might be added, if someone is interested.
Hope you'll have at least half of the fun I had in developing it:)

Cheers,

  -sgrakkyu


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