[ntp:security] Fwd: Questions about CVE-2019-11331
Danny Mayer
mayer at ntp.org
Wed May 1 13:41:47 UTC 2019
Matt,
Harlan and I are of the opinion that the report is invalid. I don't know
who reported it, but they should provide at least a proof of concept
that it is valid otherwise it should be rejected. We are not even sure
how it got such a high score.
Danny
On 4/30/19 9:10 AM, Matt Ploessel wrote:
> NTPD Sec Team,
>
> I’ve CC’ing here Cameron and Justin and Tom from US-CERT (CISA) , and
> Stan from MITRE.
>
> Tom/Cameron/Stan et al;
> anything you could tell us (Network Time Foundation / NTPD) about
> the CVE-2019-11331 ? it’s rated 9.8 but we (the vendor and code
> maintainers) don’t know anything about it and honestly could use some
> assistance/clarification.
>
> Matt Ploessel
> Board Member
> Network Time Foundation
>
>
> On Tue, Apr 30, 2019 at 9:00 AM Matt Ploessel <matt.ploessel at gmail.com
> <mailto:matt.ploessel at gmail.com>> wrote:
>
> 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
> <mailto: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
> <mailto: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 <mailto: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
> <mailto:nwtime.org at lists.ntp.org>> On Behalf Of
> stevos at nwtime.org <mailto:stevos at nwtime.org>
> Sent: Monday, April 29, 2019 11:32 AM
> To: 'Harlan Stenn' <stenn at nwtime.org
> <mailto:stenn at nwtime.org>>; 'Matt Ploessel'
> <matt.ploessel at gmail.com <mailto:matt.ploessel at gmail.com>>;
> security at ntp.org <mailto: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
> <mailto: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
> <mailto:matt.ploessel at gmail.com>>; security at ntp.org
> <mailto: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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> Subject: Re: Questions about CVE-2019-11331
> From: Harlan Stenn <stenn at nwtime.org <mailto:stenn at nwtime.org>>
> To: Marius Rohde <marius.rohde at meinberg.de
> <mailto:marius.rohde at meinberg.de>>
> Cc: Steve Sullivan <stevos at nwtime.org <mailto:stevos at nwtime.org>>
> References: <1747911970-17953 at srv-kerioconnect.py.meinberg.de
> <mailto:1747911970-17953 at srv-kerioconnect.py.meinberg.de>>
> <2d2b3cfb-a8eb-f7aa-f832-ebcc33de8b5f at nwtime.org
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> <mailto: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
> <mailto:marius.rohde at meinberg.de>
> <http://marius.rohde@meinberg.de>
> >> Internet: www.meinberg.de <http://www.meinberg.de>
> <https://www.meinberg.de> /
> >> www.meinbergglobal.com <http://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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