Re: Packet sniffing & regular users

2005-03-03 Thread Geoff Crompton
Duncan Simpson wrote: BTW I think you might be able to detect promiscous mode with a raw socket (at least on non-switched ethernet). If I send a ping packet to 192.168.1.42 using the wrong ethernet address then a response implies promiscous mode because otherwise the interface would have dropped th

Re: Packet sniffing & regular users

2005-03-03 Thread Duncan Simpson
On Thu, 2005-03-03 at 11:54, David Mandelberg wrote: > Physical access means they can touch the machine. Local access means they can > log into the machine. Often local access is further restricted to mean they > can > log in and get a real shell (i.e. the shell isn't /usr/sbin/pppd). I tend to p

Re: Packet sniffing & regular users

2005-03-03 Thread Alvin Oga
On Thu, 3 Mar 2005, David Mandelberg wrote: > Alvin Oga wrote: > > ah .. good point ... i make no distinction between "local access" > > vs "physical access" in that if the server is behind the locked > > door, it'd be better than if its on the corp server in the next > > open cubicle on the sam

Re: Packet sniffing & regular users

2005-03-03 Thread Felipe Augusto van de Wiel (faw)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone escreveu: :: On Wed, Mar 02, 2005 at 04:19:50PM -0300, Felipe :: Augusto van de Wiel (faw) wrote: I don't exactly, but, if you already allow your users to use sudo/su solutions, why are you trying to change it and... if

Re: Packet sniffing & regular users

2005-03-03 Thread David Mandelberg
Alvin Oga wrote: > ah .. good point ... i make no distinction between "local access" > vs "physical access" in that if the server is behind the locked > door, it'd be better than if its on the corp server in the next > open cubicle on the same cat 5 wires, hubs and switches etc Physical access mea

Re: Packet sniffing & regular users

2005-03-03 Thread Alvin Oga
On Wed, 2 Mar 2005, s. keeling wrote: > Incoming from Alvin Oga: > > > > On Wed, 2 Mar 2005, David Mandelberg wrote: > > > > > s. keeling wrote: > > > > Isn't it generally accepted that black hats who get local access (ie., > > > > a user login account) is _much_ worse than black hats who've b

Re: Packet sniffing & regular users

2005-03-03 Thread Alvin Oga
On Wed, 2 Mar 2005, David Mandelberg wrote: > Alvin Oga wrote: > > no more telnet, no more pop3, no more wireless, no more > > anything that is insecure > Those are not insecure: using them unwisely is. Telnet over a VPN is just as > secure as ssh with password authentication. The same g

Re: Packet sniffing & regular users

2005-03-03 Thread Adrian von Bidder
On Wednesday 02 March 2005 18.57, s. keeling wrote: > Incoming from Brian Kim: > > [snip] > > solution, what sorts of security concerns does it present, aside from > > the obvious "anyone can see anything" sort of concern? > > Do you understand what "anyone can see anything" really means? Have > y