[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 25 Feb 2013 19:45:01 +0100
From: Mathias Krause <minipli@...glemail.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE Request: kernel - sock_diag: Fix out-of-bounds
access to sock_diag_handlers[]
On Mon, Feb 25, 2013 at 5:12 PM, Solar Designer <solar@...nwall.com> wrote:
> On Mon, Feb 25, 2013 at 11:41:33AM +0100, Mathias Krause wrote:
>> But sorry, I won't disclose any further details, to not get into legal
>> issues. In Germany it's quite hairy to do things like that :/
>> But I can provide you my PoC in a private email -- for security evaluation.
>
> This is not necessary since we don't use these "too recent" kernels, but
> thanks for offering.
>
> Here's a curious tweet:
>
> <_argp> Since full-disclosure has been DDoSed to oblivion, here's huku's sock_diag 1 year-old exploit: http://pastebin.com/gwn1qErx
So it looks like those guys have been exploiting this bug for quite a
while. Good that it's fixed, now!
>
> The pastebin has:
>
> ---
> Who the fuck DDoS'ed full-disclosure? ;)
>
> http://sysc.tl/mpougatsa_me_krema_kai_milko.tgz
>
> ---------- Forwarded message ----------
> From: huku <huku@...ack.net>
> Date: Mon, 25 Feb 2013 01:18:38 +0200
> Subject: CVE-2013-1763 local root exploit
> To: full-disclosure@...ts.grok.org.uk
>
> Greetings fly to Daphne Rosen, Gianna Michaels and Carmella Bing.
>
> ./hk
> ---
>
> SHA-1:
> c5904fdaea3e212bb84592e6e2ce3a640b14308c mpougatsa_me_krema_kai_milko.tgz
>
> Two of the files in the tarball have timestamps of 2012-07-14. Of
> course, this is no proof, but it does appear that the bug was privately
> known since about July 2012. The README says:
>
> "A trimmed down version of an old exploit for the recently published
> `sock_diag_handlers[]' vulnerability :("
>
> The code contains:
>
> printf("Linux kernel >= 3.2 NETLINK_INET_DIAG 0day\n");
> printf("by huku <huku _at_ grhack _dot_ net>\n");
>
> Is ">= 3.2" an error (should have been ">= 3.3" as your original posting
> in here said)? (The difference may be whether Ubuntu 12.04 is affected.)
Did you even try to run the exploit on a v3.2 kernel? Or even more
simple, looked at the code of a v3.2 kernel? There is no sock_diag
anywhere in the kernel; there is only inet_diag. And inet_diag hadn't
and still does not have the out-of-bounds access issue. So no, this
bug is non-existent on a v3.2 kernel.
Thanks,
Mathias
>
> Alexander
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
