Hi,
1. I know y'all know it, but too often I come across customers
using CDN Dashboard without 2FA.
In my experience this has been the most abused security vector in
the cases I saw.
2. Matthias point is extremely valid.
I would add: Externally monitoring the signature of the non static
objects (html, javascript) returned by the CDN.
While you can easily recover from image defacing, having your
customers getting their private information (creds, identity, CC) stolen
is another ball game.
-----
Alain Hebert aheb...@pubnix.net
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770 Beaconsfield, Quebec H9W 6G7
Tel: 514-990-5911 http://www.pubnix.net Fax: 514-990-9443
On 11/6/20 11:57 AM, Matthias Luft via NANOG wrote:
While the change from A to CNAME itself is probably not based on
security considerations, a CNAME pointing to a CDN or similar can
result in future security issues, i.e. you want to closely monitor
your externally pointing CNAMEs when you get rid of external services:
https://www.hackerone.com/blog/Guide-Subdomain-Takeovers
On 06.11.20 05:34, Dovid Bender wrote:
Interesting. We got a few requests at the same time which is what
made we wonder. I wanted to make sure that there wasn't something I
was missing.
On Fri, Nov 6, 2020 at 5:25 AM Ray Orsini <r...@oit.co
<mailto:r...@oit.co>> wrote:
It's not a security thing. We do this with the the resellers who
white label our VOIP. CNAMEs allow us to be flexible with our own
hosts and infrastructure without having all of our resellers change
DNS records.
OIT Website <https://www.oit.co/>
Ray Orsini
Chief Executive Officer
OIT, LLC
*305.967.6756 x1009* <tel:305.967.6756%20x1009> |
*305.571.6272*
*r...@oit.co* <mailto:r...@oit.co> | https://www.oit.co
<https://www.oit.co/> * www.oit.co* <https://www.oit.co/>
oit.co/ray <http://oit.co/ray>
Facebook <https://go.oit.co/facebook>
LinkedIn <https://go.oit.co/linkedin>
Twitter <https://go.oit.co/twitter>
YouTube <https://go.oit.co/youtube>
*How are we doing? We'd love to hear your feedback.
https://go.oit.co/review*
<https://zoom.us/webinar/register/2015851001337/WN_otbRE8XZSVOitAPS_qZ9Zg>
------------------------------------------------------------------------
*From:* NANOG <nanog-bounces+ray=oit...@nanog.org
<mailto:oit...@nanog.org>> on behalf of Dovid Bender
<do...@telecurve.com <mailto:do...@telecurve.com>>
*Sent:* Friday, November 6, 2020 5:07:26 AM
*To:* NANOG <nanog@nanog.org <mailto:nanog@nanog.org>>
*Subject:* CNAME records in place of A records
Hi,
Sorry if this is a bit OT. Recently several different vendors (in
completely different fields) where they white label for us asked us
to remove A records that we have going to them and replace them with
CNAME records. Is there anything *going around* in the security
aranea that has caused this?
