Re: 198.32.64.12 -- Harmless mis-route or potential exploit?

["Paul Wall" <pauldotwall () gmail com>]

Gadi,

Could you please take the self-promotion offline already?  Enough is
enough!  I don't think anybody on this list is interested in hiring
you or reviewing your resume!

(It could be argued that my post is off-topic as well.  I disagree.
Furthermore, it had to be done, given the lack of public face or
consistent enforcement action of the current MLC.)

Drive Slow,
Paul Wall
http://www.linkedin.com/in/paulwall

On Tue, Sep 2, 2008 at 6:28 PM, Gadi Evron <ge () linuxbox org> wrote:
> My profile and resume: http://www.linkedin.com/in/gadievron
> On Tue, 2 Sep 2008, Dan Mahoney, System Admin wrote:
>
> > Hello all,
> >
> > While recently trying to debug a CEF issue, I found a good number of
> > packets in my "debug cef drops" output that were all directed at
> > 198.32.64.12 (which I see as being allocated to ep.net but completely
> > unused).
> >
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> > Sep  2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> >
> > Now, as nearly as I can tell, this IP address has never been used for
> > anything, but I see occasional references to it, such as here:
> >
> > http://www.honeynet.org/papers/forensics/exploit.html
> >
> > So the question is, should I just ignore this as a properly dropped packet
> > due to "no route" (this provider is running defaultless, so unless such a
> > route exists, it should be okay).
> >
> > On the other hand, one of the other packets I'm seeing specifically refers
> > to a DNS exploit, so should I then dispatch to people to trace down the
> > source origin ?  (Suffice it to say the resources are there to find it
> > fairly easily, even if the source address is forged).
>
> It should be treated as an intelligence source, sharing that one openly is
> probably counter-productive.
>
> Regardless, very interesting. I think follow-up just for interest's sake may
> be worth it.
>
>
> > -Dan
> >
> > --
> >
> > --------Dan Mahoney--------
> > Techie,  Sysadmin,  WebGeek
> > Gushi on efnet/undernet IRC
> > ICQ: 13735144   AIM: LarpGM
> > Site:  http://www.gushi.org
> > ---------------------------