Reply to post: old switches

The NetCAT is out of the bag: Intel chipset exploited to sniff SSH passwords as they're typed over the network

Henry Wertz 1 Gold badge

old switches

My friend had some pretty old switch, when the activity lights did not light up a half second or second at a time, but flickered with activity. You could easily tell apart interactive telnet/ssh, some ftp type file transfer, some samba or nfs style mount, apart just by seeing how it flickered (ftp of course pretty well lit it up solid). They vendors quit doing that (in favor of updating maybe a time or 2 a second) because apparently the leds responded quick enough to at least read back 10mbps data off the light flickers.

Interesting though, you may not get the password directly but i'm sure that timing info can greatly reduce the search space at least.

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