full-disclosure - Re: [CVE-2012-0207] Linux IGMP Remote Denial Of Service

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Message-ID: <CALCvwp7CwY-SB3QVCKRG2euPT2TFQyykbD80h1NW_seu+vOnpQ@mail.gmail.com>
Date: Fri, 20 Jan 2012 07:54:10 +1100
From: GloW - XD <doomxd@...il.com>
To: Morgus Magnificent <morgusdamagnificent@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: [CVE-2012-0207] Linux IGMP Remote Denial Of
	Service

Try fixing the in_cksum() function, it has been intionally
crippled,also,look at both of the 'ips' both should really be argvs,as
theyre set in saddr/daddr;)
this should be easy to fix, or read the pasted one i think is in one
of my posts in reply to it, it will show where i had to adjust it, as
the sendto, will never work with the in_cksum not functional, lan, or
no lan...
anyhow, you could ignore me, but in the end, read the code... later dude.
drew

On 19 January 2012 09:43, Morgus Magnificent
<morgusdamagnificent@...il.com> wrote:
> Thanks again for re-enforcing my paranoia with another one of your exploits.
> The apache killer one was particularly disturbing and at the same time,
> another great eye-opener, much respect to you.
>
> I tested this on a custom compiled kernel for PXE booting, version
> 2.6.37.6-x86_64, running Debian Squeeze, and I can't seem to get it to work.
> Root is mounted read-only over NFS.
>
> I don't recall any special config options I did for networking or IGMP
> requests, other then building my NIC drivers and NFS into the kernel.
> Did I just get lucky?
>
> Thanks,
>
> Morgus
>
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