[ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread David Taylor
I just added some experimental restrict statements to one on my servers: restrict default notrap nomodify nopeer noquery restrict default notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1 restrict 192.168.0.0 mask 255.255.255.0 peer and it now seems that the pool

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread David Woolley
On 20/12/14 22:01, Rob wrote: David Woolley david@ex.djwhome.demon.invalid wrote: On 20/12/14 19:58, William Unruh wrote: Is it an ntp packet (ie a time exchange packet)? is it a control packet (eg ntpq type packet?) or what? Ie, unless you use crypto, these two look like they might be

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread David Woolley
On 20/12/14 20:54, A C wrote: Ok, so the remaining uncertainty is whether some of the crafted packets can be the response packets for a normal time exchange or if they're only query/config packets. The advisory isn't completely clear on what types of packets can cause the buffer overflows.

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Rob
David Woolley david@ex.djwhome.demon.invalid wrote: On 20/12/14 22:01, Rob wrote: David Woolley david@ex.djwhome.demon.invalid wrote: On 20/12/14 19:58, William Unruh wrote: Is it an ntp packet (ie a time exchange packet)? is it a control packet (eg ntpq type packet?) or what? Ie, unless you

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Rob
David Taylor david-tay...@blueyonder.co.uk.invalid wrote: I just added some experimental restrict statements to one on my servers: restrict default notrap nomodify nopeer noquery restrict default notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1 restrict

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Terje Mathisen
Rob wrote: David Taylor david-tay...@blueyonder.co.uk.invalid wrote: I just added some experimental restrict statements to one on my servers: restrict default notrap nomodify nopeer noquery restrict default notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Rob
David Woolley david@ex.djwhome.demon.invalid wrote: On 21/12/14 10:48, Rob wrote: People say disable crypto but there is no clear direction in the docs on how to do that. There is no crypto off or disable crypto config directive at first glance. So how is this done? I would assume by not

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Rob
Terje Mathisen terje.mathi...@tmsw.no wrote: Rob wrote: David Taylor david-tay...@blueyonder.co.uk.invalid wrote: I just added some experimental restrict statements to one on my servers: restrict default notrap nomodify nopeer noquery restrict default notrap nomodify nopeer noquery

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread David Woolley
On 21/12/14 10:48, Rob wrote: People say disable crypto but there is no clear direction in the docs on how to do that. There is no crypto off or disable crypto config directive at first glance. So how is this done? I would assume by not enabling it.

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Rob
David Woolley david@ex.djwhome.demon.invalid wrote: On 21/12/14 11:24, Rob wrote: Anyway, I consider it a bug. I don't want to lift restrictions to arbitrary systems selected from a pool. So, out went the pool command. Why do you want to specify pool servers if you want to restrict their

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread David Woolley
On 21/12/14 11:24, Rob wrote: Anyway, I consider it a bug. I don't want to lift restrictions to arbitrary systems selected from a pool. So, out went the pool command. Why do you want to specify pool servers if you want to restrict their use so that you cannot use them? When people say

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread David Woolley
On 21/12/14 11:38, Rob wrote: David Woolley david@ex.djwhome.demon.invalid wrote: On 21/12/14 10:48, Rob wrote: People say disable crypto but there is no clear direction in the docs on how to do that. There is no crypto off or disable crypto config directive at first glance. So how is this

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Rob
David Woolley david@ex.djwhome.demon.invalid wrote: Paranoia? Security alerts are generally not that explicit (and this one is actually unusually explicit) because they provide information to the hackers. That is usually obtained anyway be reverse-engineering the fix. In this case that is

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Harlan Stenn
David Taylor writes: I just added some experimental restrict statements to one on my servers: restrict default notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1 restrict 192.168.0.0 mask 255.255.255.0 peer and it now seems that the pool directive is not finding

[ntp:questions] Soekris net4501 help....

2014-12-21 Thread David Taylor
I have been the fortunate recipient of a Soekris net4501, but although I've written a Compact Flash card image it doesn't boot, from the CF card, although the V1.23 BIOS appears to work. I may not spend too long on this but could anyone point me to a known working image? I used m0n0wall

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread David Taylor
On 21/12/2014 14:22, Rob wrote: [] Yes, when you want to allow things to the local system you need to add: restrict 127.0.0.1 restrict ::1 I already had those, but ntpq didn't work from a local PC, if that PC was also listed as a server. At least do not recommend others to set default

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread David Taylor
On 21/12/2014 11:17, Terje Mathisen wrote: [] 'restrict source' is the proper way to do it, as long as you have a version which supports that command. Terje Thanks, Rob Terje, that did the job. Almost! The except was that if you have a local node defined as a server, and you want that

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Rob
David Taylor david-tay...@blueyonder.co.uk.invalid wrote: On 21/12/2014 11:17, Terje Mathisen wrote: [] 'restrict source' is the proper way to do it, as long as you have a version which supports that command. Terje Thanks, Rob Terje, that did the job. Almost! The except was that if you

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Jochen Bern
On 12/21/2014 12:38 PM, Rob wrote: David Woolley david@ex.djwhome.demon.invalid wrote: On 21/12/14 10:48, Rob wrote: People say disable crypto but there is no clear direction in the docs on how to do that. I would assume by not enabling it. Ok, but in that case why the worry about the

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Rob
Jochen Bern jochen.b...@linworks.de wrote: As far as I'm concerned, 0.66 * -9295 is enough for me to grab the backports from the repos for our outward-serving ntpds right now ... Yes, for most systems I did the same, but I have the development version of ntpd running on a couple of systems, and

Re: [ntp:questions] Soekris net4501 help....

2014-12-21 Thread Jan Ceuleers
On 21/12/14 14:08, David Taylor wrote: I have been the fortunate recipient of a Soekris net4501, but although I've written a Compact Flash card image it doesn't boot, from the CF card, although the V1.23 BIOS appears to work. I may not spend too long on this but could anyone point me to a

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 9:19 AM, David Taylor david-tay...@blueyonder.co.uk.invalid wrote: The except was that if you have a local node defined as a server, and you want that node to be able to issue ntpq commands, it seems that the configuration I suggested blocks this, even adding query to the

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 7:04 AM, Rob nom...@example.com wrote: That means I don't accept that anyone outside does something that may modify my server (including setting up a peer relationship). If you actually think the software is so badly designed that it would allow this you should stop

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Rob
Paul tik-...@bodosom.net wrote: On Sun, Dec 21, 2014 at 7:04 AM, Rob nom...@example.com wrote: That means I don't accept that anyone outside does something that may modify my server (including setting up a peer relationship). If you actually think the software is so badly designed that it

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread William Unruh
On 2014-12-21, Harlan Stenn st...@ntp.org wrote: A C writes: I'm trying to compile the new 4.2.8 tarball since the Debian source packages are broken and unable to compile due to various issues. I downloaded the new 4.2.8 from ntp.org, unpacked and ran the following: ./configure

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 3:10 PM, Rob nom...@example.com wrote: The documentation is very difficult to read. I better spend my time on other things. Well I certainly hope everyone here will notice that you have better things to do than read the documents ... Or even ask: will using

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread Harlan Stenn
William Unruh writes: On 2014-12-21, Harlan Stenn st...@ntp.org wrote: It doesn't contradict itself. It finds sys/timepps.h. This is expected. It does not find timepps.h. This is expected. The former lives in /usr/include/sys/timepps.h, as you note above. The latter does not

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP) is vulnerable to exploitation?

2014-12-21 Thread Virus Guy
David H. Lipman wrote: (Dave Lipman posted examples from his router logs of incoming traffic to port 123) Um - did you notice that 149.20.68.17 resolves to pool-test.ntp.org? Your other IP's resolve to: 108.61.73.244 = helium.constant.com 162.243.55.105 =

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP) is vulnerable to exploitation?

2014-12-21 Thread Harlan Stenn
Virus Guy writes: ... So either you are misreading your logs (and what you think are incoming queries on port 123 are really outgoing queries from some computer on your lan to something.pool.ntp.org), or these really are incoming queries coming from legit (or previous legit) NTP servers.

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 3:23 PM, William Unruh un...@invalid.ca wrote: Why would it be searching for timepps.h when it had already found sys/timepps.h? I suspect there's a multitude that believe configure is ... inefficient. Nothing like building on an armel to make you rethink

[ntp:questions] [ntp:announce] ntp-4.2.8 is available

2014-12-21 Thread Harlan Stenn
NTP 4.2.8 (Harlan Stenn st...@ntp.org, 2014/12/18) Focus: Security and Bug fixes, enhancements. Severity: HIGH In addition to bug fixes and enhancements, this release fixes the following high-severity vulnerabilities: ** vv NOTE WELL vv *

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread Harlan Stenn
Paul writes: On Sun, Dec 21, 2014 at 3:23 PM, William Unruh un...@invalid.ca wrote: Why would it be searching for timepps.h when it had already found sys/timepps.h? I suspect there's a multitude that believe configure is ... inefficient. Nothing like building on an armel to make you

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP) is vulnerable to exploitation?

2014-12-21 Thread David H. Lipman
From: Virus Guy Virus@Guy . com David H. Lipman wrote: (Dave Lipman posted examples from his router logs of incoming traffic to port 123) Um - did you notice that 149.20.68.17 resolves to pool-test.ntp.org? Your other IP's resolve to: 108.61.73.244 = helium.constant.com 162.243.55.105 =

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 7:54 PM, Harlan Stenn st...@ntp.org wrote: What would be demonstrably better? That's an impossible request. No one can know a priori if you'd make a good-faith effort to switch to say CMake and then find it better than Auto* I'm willing to excuse the the

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread William Unruh
On 2014-12-21, Jochen Bern jochen.b...@linworks.de wrote: On 12/21/2014 12:38 PM, Rob wrote: David Woolley david@ex.djwhome.demon.invalid wrote: On 21/12/14 10:48, Rob wrote: People say disable crypto but there is no clear direction in the docs on how to do that. I would assume by not

Re: [ntp:questions] Restrict statements and the pool directive

2014-12-21 Thread David Woolley
On 21/12/14 20:10, Rob wrote: What I got from the documentation is that without nopeer a server could setup a peer association. I don't like that. No. Without nopeer, a *client* can't set up a peer session. If you are using a system as a server, it cannot cause you more disruption than if

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP)is vulnerable to exploitation?

2014-12-21 Thread Virus Guy
Harlan Stenn wrote: ... or these really are incoming queries coming from legit (or previous legit) NTP servers. If the answer is the latter, then these may very well be examples of comprimised / trojanized NTP servers performing their own NTP probes under botnet control. I think

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Harlan Stenn
Bill, Are you willing to improve your deportment? You are performing an active dis-service. I find your posts too often to be destructive, not constructive. See below. William Unruh writes: On 2014-12-21, Jochen Bern jochen.b...@linworks.de wrote: On 12/21/2014 12:38 PM, Rob wrote: David

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread Paul
On Sun, Dec 21, 2014 at 4:25 PM, William Unruh un...@invalid.ca wrote: There are lots of people who are strongly interested in having good time, but cannot simply upgrade to 4.2.8. And yet people apply critical monthly patches from Microsoft and Oracle all the time without running them

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP) is vulnerable to exploitation?

2014-12-21 Thread brian utterback
On 12/21/2014 8:13 PM, David H. Lipman wrote: From: Virus Guy Virus@Guy . com David H. Lipman wrote: (Dave Lipman posted examples from his router logs of incoming traffic to port 123) Nope. There is no reason to believe that the LAN behind the static IP does anything but syncs time

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP) is vulnerable to exploitation?

2014-12-21 Thread brian utterback
On 12/21/2014 11:11 PM, brian utterback wrote: loop and taking them off the error. Just my two cents. Doh! air. -- Brian Utterback Solaris RPE, Oracle Corporation. Ph:603-262-3916, Em:brian.utterb...@oracle.com ___ questions mailing list

Re: [ntp:questions] Jesus Christ! - even internet time-sync (NTP)is vulnerable to exploitation?

2014-12-21 Thread Harlan Stenn
Virus Guy writes: Harlan Stenn wrote: ... or these really are incoming queries coming from legit (or previous legit) NTP servers. If the answer is the latter, then these may very well be examples of comprimised / trojanized NTP servers performing their own NTP probes under

Re: [ntp:questions] 4.2.8 can't find timepps.h or can it?

2014-12-21 Thread William Unruh
On 2014-12-21, Harlan Stenn st...@ntp.org wrote: William Unruh writes: On 2014-12-21, Harlan Stenn st...@ntp.org wrote: It doesn't contradict itself. It finds sys/timepps.h. This is expected. It does not find timepps.h. This is expected. The former lives in

Re: [ntp:questions] ntp-4.2.8 is available

2014-12-21 Thread William Unruh
Thank you for this Note Well and putting the additional lines into http://support.ntp.org/bin/view/Main/SecurityNotice telling us about the restric default noquery option. On 2014-12-22, Harlan Stenn st...@ntp.org wrote: NTP 4.2.8 (Harlan Stenn st...@ntp.org, 2014/12/18) Focus: Security

Re: [ntp:questions] What to do for clients less than 4.2.8?

2014-12-21 Thread William Unruh
In comp.protocols.time.ntp, you wrote: Bill, Are you willing to improve your deportment? You are performing an active dis-service. I find your posts too often to be destructive, not constructive. See below. See below William Unruh writes: On 2014-12-21, Jochen Bern

Re: [ntp:questions] Soekris net4501 help....

2014-12-21 Thread David Taylor
On 21/12/2014 19:05, Jan Ceuleers wrote: On 21/12/14 14:08, David Taylor wrote: I have been the fortunate recipient of a Soekris net4501, but although I've written a Compact Flash card image it doesn't boot, from the CF card, although the V1.23 BIOS appears to work. I may not spend too long on