Re: UPDATE: more SSH hacking

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ipv4 and ipv6 operate at a layer that is different from the physical
card. There is no such thingas an ipv6 mac address.

On Tue, 10 Aug 2004 09:00:51 -0400, Scot L. Harris <webid@xxxxxxxxxx> wrote:
> On Tue, 2004-08-10 at 04:54, Brian Fahrlander wrote:
> >     I was just noticing, while trying to reload a machine with FC1 (long
> > story- don't ask) I was watching the log and noticed something I noticed
> > earlier:
> >
> > Aug 10 03:45:24 evv kernel: firewall: IN=eth1 OUT= MAC=00:00:c0:d9:5b:98:00:01:30:08:dc:00:08:00 SRC=221.15.178.84 DST=63.69.210.36 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=18935 DF PROTO=TCP SPT=4262 DPT=1025 WINDOW=64240 RES=0x00 SYN URGP=0
> > Aug 10 03:45:30 evv kernel: firewall: IN=eth1 OUT= MAC=00:00:c0:d9:5b:98:00:01:30:08:dc:00:08:00 SRC=221.15.178.84 DST=63.69.210.36 LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=20211 DF PROTO=TCP SPT=4262 DPT=1025 WINDOW=64240 RES=0x00 SYN URGP=0
> >
> > <slight delay here and then:>
> > Aug 10 03:45:45 evv kernel: martian destination 0.0.0.0 from 65.218.63.155, dev eth1
> >
> >
> >     I'm no firewall-guru, but this having happened more than once, I get
> > the feeling our new SSH-hacking friend might be trying to get around the
> > firewall.
> >
> >     Does anyone else concur?
> 
> Double check your system and make sure port 1025 is closed or disabled.
> That appears to be the port they are trying to hit.  What I find
> interesting is the MAC address info.  It appears to be a IPV6 MAC
> address not a IPV4 (to many octets).  If you don't need IPV6 you may
> want to disable that as well.
> 
> A quick google on port 1025 had it listed in one place as network
> blackjack.  Not sure how accurate that is.  But most likely this just
> someone scanning various ports for something open or for a specific
> exploit on a service that uses port 1025.
> 
> --
> Scot L. Harris <webid@xxxxxxxxxx>
> 
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