Re: Secured way of using Wireshark

[Martin Visser <martinvisser99 () gmail com>]

Nag.,

I think Guy has pretty much filled you in on the Remote Capture interface.
The reality is that if your users do have admin rights to a machine then
they can do pretty much anything they like. While you could make the Remote
Packet Capture Service only runnable by certain users, you would need to
make sure that no user can "trump" those change with Admin rights.

(And of course you allow users to physical have access to machines (and
don't lock down the BIOS, USB ports, etc), they can pretty much boot up
anything they like.

Usually many such security issues are better solved through human security
controls (telling people to not do the wrong thing if they want to keep
their job) then onerous technical measures.

Regards, Martin

MartinVisser99 () gmail com


On Wed, Jun 16, 2010 at 3:01 PM, Maynard, Chris <
Christopher.Maynard () gtech com> wrote:

>  I was confused by the question too, but if I focus only on the question
> asked, namely, "Is there a way to capture packets from/to a selected list
> of IP address on a LAN?", then the answer is yes.
>
> First you must set things up so the machine doing the capturing has access
> to the packets of interest.  This may involve adding a hub, enabling port
> mirroring on a switch, etc.  See http://wiki.wireshark.org/CaptureSetup for
> more information.
>
> And second, you must use an appropriate capture filter.  For example, if
> you want to capture all packets sent from/to 2 hosts (assume IP addresses
> IP1 and IP2), to any other host then you might use the following capture
> filter to accomplish this: "host IP1 or host IP2".  If you only want to see
> packets sent between those 2 hosts, then you would use, "host IP1 and host
> IP2".  See http://wiki.wireshark.org/CaptureFilters for more informationon capture filters.
>
> Now if you want to "restrict the packet capturing to a set of machines ...",
> then that's a different problem to solve.
>
> - Chris
>
>  ------------------------------
> *From:* wireshark-users-bounces () wireshark org [mailto:
> wireshark-users-bounces () wireshark org] *On Behalf Of *Martin Visser
> *Sent:* Tuesday, June 15, 2010 8:57 PM
>
> *To:* Community support list for Wireshark
> *Subject:* Re: [Wireshark-users] Secured way of using Wireshark
>
> Nag,
>
> I'm not sure what you mean by your question. Capturing packets is for the
> most part passive, in that you are saving packets to a file for viewing.
> Wireshark does not propagate packets to the rest of the network, no matter
> how virus laden they are. (Certainly as long as those packets are not
> specially crafted to maybe exploit a vulnerability in wireshark itself,
> which while it ihas been done, is very very rarely actually seen in the
> wild).
>
> Regards, Martin
>
> MartinVisser99 () gmail com
>
>
> On Tue, Jun 15, 2010 at 6:55 PM, Nagendrababu Maseedu <
> Nagendra.Babu.Maseedu () convergys com> wrote:
>
> >  Hi,
> >
> >
> >
> > Is there a way to capture packets from/to a selected list of IP address on
> > a LAN?
> >
> > The need is to restrict the packet capturing to a set of machines so that
> > security breach does not happen on other machines on the same network.
> >
> >
> >
> > Please let me know if you have any other mechanism to satisfy this need.
> >
> >
> >
> >
> >
> > Kind regards,
> >
> > Nag.
> >
> > ------------------------------
> > NOTICE: The information contained in this electronic mail transmission is
> > intended by Convergys Corporation for the use of the named individual or
> > entity to which it is directed and may contain information that is
> > privileged or otherwise confidential. If you have received this electronic
> > mail transmission in error, please delete it from your system without
> > copying or forwarding it, and notify the sender of the error by reply email
> > or by telephone (collect), so that the sender's address records can be
> > corrected.
> >
> >
> > ___________________________________________________________________________
> > Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
> > Archives:    http://www.wireshark.org/lists/wireshark-users
> > Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
> >             mailto:wireshark-users-request () wireshark org
> > ?subject=unsubscribe
>
> CONFIDENTIALITY NOTICE: The contents of this email are confidential
> and for the exclusive use of the intended recipient. If you receive this
> email in error, please delete it from your system immediately and
> notify us either by email, telephone or fax. You should not copy,
> forward, or otherwise disclose the content of the email.
>
>
> ___________________________________________________________________________
> Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
> Archives:    http://www.wireshark.org/lists/wireshark-users
> Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
>             mailto:wireshark-users-request () wireshark org
> ?subject=unsubscribe
___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe