Re: [PEN-TEST] OT - How secure is an ISDN line?

[Kris Carlier <root () iguana be>]

Hi(gh, though down under) Clem,

just a reflection. How easy/difficult is it to actually sniff a PSTN or
ISDN line ? Cfr RAS, where you can use DES to encrypt the datastream
(provided you choose MSCHAP for your connection).

I'm like: sure, looks cool, but otoh, sniffing a network is easy enough.
Sniffing a PSTN line requires more - I presume - than your average
networkcard cq modem ? Or am I totally de-synchronized on this ?

In the ISDN-case, more specifically, isn't it so that as opposed to PSTN,
if you get an error on an ISDN-line, the connection will drop ? So the
sniffer should be pretty silent.

I'm not talking/asking about the pelco-people of course. how do you sniff
a phone line ? Van Eck monitoring probably ain't the right direction ? ;-)

kr=, wondering

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