nanog mailing list archives

Re: NIST NTP servers


From: Jared Mauch <jared () puck nether net>
Date: Tue, 10 May 2016 16:18:01 -0400


On May 10, 2016, at 3:58 PM, Gary E. Miller <gem () rellim com> wrote:

I'm sure there are many more examples, but likely you can no longer log
in, via SSH or HTTPS, and your iPhone is dead.  I think any of those
would qualify as more than an annoyance.

An unnamed vendor has code where if the clock on their router is not
set SSH won’t work as the crypto package signature says the
package isn’t valid.

Many of the not-before and not-after certificate systems have some fairly
serious issues.

https://www.cs.bu.edu/~goldbe/pub-index.html#NTP

is one place to start when it comes to on-path and off-path
NTP attacks that can skew clocks.

- jared

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