[ntp:security] [Bug 3118] Mode 6 unauthenticated trap information disclosure and DDoS vector

bugzilla-daemon at ntp.org bugzilla-daemon at ntp.org
Sat Sep 24 18:44:28 UTC 2016


Juergen Perlinger <perlinger at ntp.org> changed:

           What    |Removed                     |Added
   Attachment #1461|                            |patchReview?
              Flags|                            |

--- Comment #6 from Juergen Perlinger <perlinger at ntp.org> 2016-09-24 18:44:28 UTC ---
Created attachment 1461
  --> https://bugs.ntp.org/attachment.cgi?id=1461
proposed patch / rev1

As suggested by Matthew, this requires AUTH for the mode 6 packets that change
trap configuration in NTPD. (I also added writing clock vars to the list of
auth-required requests.)

NTPQ itself does not (yet?) implement any trap-related commands, so this a pure
server-side patch.

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