full-disclosure - previledge password in cisco routers

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From: pdonahue at acmicorp.com (Donahue, Pat)
Subject: previledge password in cisco routers

Another possibility is compromising a machine that runs some common
config archiver such as Rancid (http://www.shrubbery.net/rancid/). This
utility uses a .cloginrc in the Rancid user's home directory containing
the hostnames and passwords of Cisco devices. Network administrators who
manage a large number of devices often use this to track and audit
config changes. You could also try determining if a central AAA system
is used such as TACACS+ and go after that box instead. But, like the
previous poster said, sniffing is probably the easiest way unless SSH is
used.

-----Original Message-----
From: full-disclosure-admin@...ts.netsys.com
[mailto:full-disclosure-admin@...ts.netsys.com] On Behalf Of amilabs
Sent: Wednesday, November 24, 2004 12:16 PM
To: 'Todd Towles'; 'john morris'; 'Scott T. Cameron'
Cc: full-disclosure@...ts.netsys.com
Subject: RE: [Full-Disclosure] previledge password in cisco routers

The only way to get it remotely is to get hold of and compromise a
machine
on the network where the routers/switches resides. Then run a sniffer
app
for just telnet and capture the individual keystrokes when someone logs
into
the router and then enters the enable password. Remember inside the
network
most telnet support functions to routers and switches are not encrypted
so
by capturing a support personnel's telnet session will give you the
enable
password. This can be done with SNMP also but that is another
discussion.
The trick is to get the compromised machine to run the sniffer like
tcpdump
etc.. Even if tacacs is used you will still see the open unencrypted
telnet
keystrokes from the admin to the router. The router will then encrypt
that
info and send it to the tacacs server for its backend process. You need
to
just watch the admin's. steps. That is how you can get it remotely...
Unless
the routers are configured for ssh for telnet you can see everything in
the
clear with a sniffer..

Regards..

-----Original Message-----
From: full-disclosure-admin@...ts.netsys.com
[mailto:full-disclosure-admin@...ts.netsys.com] On Behalf Of Todd Towles
Sent: Wednesday, November 24, 2004 9:38 AM
To: john morris; Scott T. Cameron
Cc: full-disclosure@...ts.netsys.com
Subject: RE: [Full-Disclosure] previledge password in cisco routers

Do you seriously think there is a easy way to get the enable password
remotely? If you have the config, you can get it from there..if you have
the
box you can do a password recovery by booting in rommon...otherwise the
box
isn't yours..and you won't find a clear exact answer because there isn't
one.  

> -----Original Message-----
> From: full-disclosure-admin@...ts.netsys.com
> [mailto:full-disclosure-admin@...ts.netsys.com] On Behalf Of john 
> morris
> Sent: Wednesday, November 24, 2004 3:15 AM
> To: Scott T. Cameron
> Cc: full-disclosure@...ts.netsys.com
> Subject: Re: [Full-Disclosure] previledge password in cisco routers
> 
> Ooops.. i reframe my question. Is there a way to get the enable 
> password remotely . Brute force is not my option
> 
> 
> 
> (FROM LINKS TO LINKS WE ARE ALL LINKED)
> 
> cheersssss.....
> 
> morris
> 
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.netsys.com/full-disclosure-charter.html
> 

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html