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Operating Systems Solaris What are the NTP 3 vulnerabilities? Post 302385277 by TonyFullerMalv on Thursday 7th of January 2010 04:31:17 PM
Old 01-07-2010
The time on your systems could be subverted a causing denial attack.
Whch ever version of NTP you are using if you are in control of your NTP server you can make your NTP system use an encryption key, according to this page:
http://www.eecis.udel.edu/~mills/ntp/html/keygen.html
what they are proposing requires NTPv4 to be used.

This:
ConfiguringAutokey < Support < NTP
may help in setting this up.

and this page:
http://support.ntp.org/bin/view/Main/SecurityNotice
carries security notices relating to NTP.

Last edited by TonyFullerMalv; 01-07-2010 at 05:39 PM..
 

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timedsetup(8)						      System Manager's Manual						     timedsetup(8)

NAME
timedsetup - Performs initial setup of the time server daemon (timed). SYNOPSIS
/usr/sbin/timedsetup DESCRIPTION
The timedsetup command is an interactive script that can be used to perform initial time service configuration for your system. By default, timed does not start at boot time. The timedsetup script asks if you want the timed daemon to be started at boot time, and prompts you for any options to pass to the timed daemon whenever it is invoked. The script then starts the timed daemon. For more information on the timed options, see the timed(8) reference page. Note The timed daemon is provided for compatibility. Tru64 UNIX also provides support for the Network Time Protocol (NTP) through the xntpd daemon. Compaq recommends you use NTP for time synchronization. If your system is configured to run NTP, the timedsetup command passes the -E and -M options to the timed daemon by default. If you plan to run both the timed daemon and NTP, you should configure NTP first. RESTRICTIONS
In configurations with two or more hosts each connected to the same two or more subnetworks, only one of the host can run the timed with the -M option. FILES
Specifies the command pathname The timed startup and shutdown script Specifies timed parameters pertinent to a specific system SEE ALSO
Commands: timed(8), xntpd(8) timedsetup(8)
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