[ntp:security] Fwd: Questions about CVE-2019-11331

Matt Ploessel matt.ploessel at gmail.com
Tue Apr 30 13:00:15 UTC 2019


i’ll be in pittsburgh the next few days for meetings, I can try and swing
by cert/cc @ carnegie mellon. I’ve also reached out to stan (MITRE contact)
for clarification and details on the cve.


On Mon, Apr 29, 2019 at 5:09 PM <stevos at nwtime.org> wrote:

> This could come in handy for this new issue:
> https://nvd.nist.gov/general/faq#eeabbb01-eb9f-488d-ac31-40a8b92c1473
>
> a couple of items from that page:
>
> What happens after a vulnerability is identified?
> CVE identifiers are assigned by CVE and other CVE Numbering Authorities
> (CNAs). The NVD receives data feeds from the CVE website and in turn
> performs analysis to determine impact metrics (CVSS), vulnerability types
> (CWE), and applicability statements (CPE), as well as other pertinent
> metadata. The NVD does not actively perform vulnerability testing, relying
> on vendors and third party security researchers to provide information that
> is then used assign these attributes. We then perform additional research
> to confirm that CPEs comply with CPE specifications and include them in the
> official CPE dictionary. As additional information becomes available CVSS
> scores and configurations are subject to change.
>
> ***A vulnerability has been identified, and possibly a CVE has been
> assigned, why is it not in your database?
> Although a CVE ID may have been assigned by either CVE or a CAN, it will
> not be available in the NVD if it has a status of RESERVED by CVE. Please
> check the CVE dictionary first, and if you have further questions about a
> specific CVE and when it will be available, please contact cve at mitre.org
> directly.
>
> ***I have found an error within an NVD Vulnerability Summary, what should
> I do?
> Go to https://cveform.mitre.org/ to request updates to the vulnerability
> descriptions, with an explanation of the error and any relevant details
> (e.g. sources of information that demonstrate the error). If it is
> determined that a CVE vulnerability summary should be revised, they will
> update their data feed, which will generally be updated in the NVD within
> 24 hours of an update to the CVE data feed. When you hear that the
> vulnerability description will be updated please email the NVD to ensure
> any required changes occur.
>
> One of the links provided with the CVE points to an incorrect hyperlink,
> what should I do?
> If you discover that a hyperlink does not reference the correct CVE please
> email cve at mitre.org with the incorrect link and any other applicable
> information.
>
> ***I am a software vendor and want to dispute that a vulnerability exists.
> What should I do?
> The NVD is based upon the CVE standard vulnerability dictionary. To
> dispute a vulnerability, contact the CVE Editorial Board (and carbon copy
> the NVD) Any action taken will be published in the CVE dictionary data
> feeds, and reflected on the NVD Vulnerability summary page within 24 hours.
>
>
> ***I would like to dispute the score of a vulnerability. What should I do?
> If you believe a score should be changed based on publicly available
> information that may not have been available at the time of the scoring
> please email including the CVE ID and a description of the issue with
> supporting public information and the NVD analysts will review the score
> and respond appropriately.
>
>
> The vulnerability has been remediated; can you remove the CVE from the NVD?
> The NVD does not remove vulnerabilities from the database. If you wish to
> dispute a CVE, please contact the CVE Editorial Board who controls the
> assignment, description, and deprecation of CVEs. If it is determined that
> a CVE should not have been assigned, they will update their data feed,
> which will then be updated in the NVD feeds within 24 hours.
>
> ***** Does NTF do this now? *****
> *****What is the NVD Vendor Official Statement Service?
> If you would like to provide an official vendor comment, which can include
> information regarding links to patches or product updates, please submit
> the specific text or information from a valid vendor email address and we
> will post it for the associated CVE.
>
>
> How do I report a vulnerability to the NVD?
> The NIST National Vulnerability Database does not accept vulnerability
> reports directly. If you would like to report a vulnerability, please
> contact CERT/CC.
>
>
> -----Original Message-----
> From: security <security-bounces+stevos=nwtime.org at lists.ntp.org> On
> Behalf Of stevos at nwtime.org
> Sent: Monday, April 29, 2019 11:32 AM
> To: 'Harlan Stenn' <stenn at nwtime.org>; 'Matt Ploessel' <
> matt.ploessel at gmail.com>; security at ntp.org
> Subject: Re: [ntp:security] Fwd: Questions about CVE-2019-11331
> Importance: High
>
> Harlan and Matt,
>
> Should we reach out to Art Manion?
>
> On another note, do we have the CVE#s listed in Bugzilla with the
> associated bugs that do get reported?  Seems like more folks use the CVE#
> to call out bugs than they do the numbers we assign to them in Bugzilla.
>
>
> Steve
>
> -----Original Message-----
> From: security <security-bounces+stevos=nwtime.org at lists.ntp.org> On
> Behalf Of Harlan Stenn
> Sent: Monday, April 29, 2019 3:53 AM
> To: Matt Ploessel <matt.ploessel at gmail.com>; security at ntp.org
> Subject: [ntp:security] Fwd: Questions about CVE-2019-11331
>
> Matt,
>
> It looks like somebody opened up this CVE and never notified us.
>
> It also looks like this report is bogus, but I just heard about it in the
> last few minutes and I'd like to check it out before I say more.
>
> I've already heard from one big customer asking about it, as they gave it
> a CVSS3 score of 9.8, which seems insane and irresponsible.
>
> Not the sort of thing I want to see at 0345 when I'm about to fall asleep.
>
> H
>
> PS - I'm not sending this encrypted because our PGP key has expired and
> Brad hasn't had time to refresh that yet.  I've asked him if he can get
> that done sometime "today".
>
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> ESMTPSA id 44t1VS3XtgzL7N; Mon, 29 Apr 2019 10:44:00 +0000 (UTC)
> Subject: Re: Questions about CVE-2019-11331
> From: Harlan Stenn <stenn at nwtime.org>
> To: Marius Rohde <marius.rohde at meinberg.de>
> Cc: Steve Sullivan <stevos at nwtime.org>
> References: <1747911970-17953 at srv-kerioconnect.py.meinberg.de>
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> Message-ID: <f7f8449c-5440-334f-0e0c-e97628354e44 at nwtime.org>
> Date: Mon, 29 Apr 2019 03:43:58 -0700
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>
> Hi Marius,
>
> Nobody told us about this one.
>
> I'm not certain yet, but this seems completely bogus to me.
>
> I'll loop in some wizards and see what I can find.
>
> H
>
> On 4/29/2019 3:35 AM, Harlan Stenn wrote:
> > Hi Marius,
> >
> > On 4/29/2019 1:37 AM, Marius Rohde wrote:
> >> Hi Harlan,
> >>
> >> we have seen that the problem with the standard port usage is rated
> >> critical in the CVE database.
> >> Do you have more background information? Exists a known exploit, that
> >> is able to do a ntp path-off attack?
> >
> > Which bug corresponds to this CVE report?  I'm not seeing it in any of
> > our content.
> >
> > H
> > --
> >> Thank you in advance.
> >>
> >> Mit freundlichem Gruß / With kind regards *Marius Rohde*
> >>
> >> *MEINBERG Funkuhren GmbH & Co. KG*
> >> Lange Wand 9
> >> D-31812 Bad Pyrmont, Germany
> >> Phone: +49 (0)5281 9309-485
> >> Fax: +49 (0)5281 9309-230
> >> Amtsgericht Hannover 17HRA 100322
> >> Geschäftsführer: Günter Meinberg, Werner Meinberg, Andre Hartmann,
> >> Heiko Gerstung
> >> Email: marius.rohde at meinberg.de <http://marius.rohde@meinberg.de>
> >> Internet: www.meinberg.de <https://www.meinberg.de> /
> >> www.meinbergglobal.com <https://www.meinbergglobal.com> /
> >> www.meinberg.academy <https://www.meinberg.academy>
> >>
> >> ---------------------------------------------------------------------
> >> --- *MEINBERG - Solutions for Time and Frequency Synchronization*
> >>
> >
>
> --
> Harlan Stenn, Network Time Foundation
> http://nwtime.org - be a Member!
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