Aside from compromising your DigiCert account, compromising a host where the 
key can be exported from is the more likely approach. Having a PFX file with 
the key sitting around on a share (something that isn't as uncommon as you'd 
think unfortunately) is another possible angle. 

Thanks,
Brian Desmond

w - 312.625.1438 | c - 312.731.3132

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Ferguson, Chris
Sent: Tuesday, May 24, 2016 1:36 PM
To: ntsysadm@lists.myitforum.com
Subject: RE: [NTSysADM] SSL Certificate

That would require them to have the private key though. 

I spoke with Digicert a few minutes ago about this topic as I freaked out a 
little not understanding the risk. 

Their response was: 
- Your Digicert account would have to be compromised
- They can revoke any certificate that is compromised
- I can revoke any certificate compromised if able to
- Best Practice: always get a duplicate wildcard certificate with a separate 
SAN  for each host

Chris Ferguson
IT Manager, Infrastructure and Operations | NEPC, LLC
P: +1 (617) 395-7329 | M: +1 (978) 257-9789


-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Brian Desmond
Sent: Tuesday, May 24, 2016 1:35 PM
To: ntsysadm@lists.myitforum.com
Subject: RE: [NTSysADM] SSL Certificate

A wildcard cert asserts a certain level of assurance that the party on the 
other end is say contoso.com for any name under contoso.com. If you lose the 
cert, someone can impersonate you for any name they want as long as that cert 
isn't revoked. More of a keep track of where you have the cert installed thing 
than anything else. Ideally it lives in one place - e.g. a load 
balancer/reverse proxy - rather than being distributed across a ton of servers. 

Thanks,
Brian Desmond

(w) 312.625.1438 | (c) 312.731.3132

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Ferguson, Chris
Sent: Tuesday, May 24, 2016 12:24 PM
To: ntsysadm@lists.myitforum.com
Subject: RE: [NTSysADM] SSL Certificate

With the duplicate, you're actually putting a name in the SAN, so I'm not sure 
that this particular use case exists with Digicert?  

Or, probably more accurately, I don't understand your risk...

Chris Ferguson
IT Manager, Infrastructure and Operations | NEPC, LLC
P: +1 (617) 395-7329 | M: +1 (978) 257-9789

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Brian Desmond
Sent: Tuesday, May 24, 2016 12:59 PM
To: ntsysadm@lists.myitforum.com
Subject: RE: [NTSysADM] SSL Certificate

Just keep good track of the wildcard. The downside of losing a single name cert 
is somebody can go be foo.contoso.com, when you misplace a wildcard (until it 
gets revoked), someone can go be *.contoso.com.

Thanks,
Brian Desmond

(w) 312.625.1438 | (c) 312.731.3132

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Ferguson, Chris
Sent: Tuesday, May 24, 2016 10:44 AM
To: ntsysadm@lists.myitforum.com
Subject: Re: [NTSysADM] SSL Certificate

Ah, yes... Another +10 for the wildcard cert - makes deployment far easier. 


> On May 24, 2016, at 11:40 AM, Melvin Backus <melvin.bac...@byers.com> wrote:
> 
> +10 for Digicert. They are a bit more expensive than GoDaddy, but way cheaper 
> than Verisign / Thawte.  I cannot possibly say enough about their support 
> team.  I've had cases where they actually called me to help before I even 
> open a ticket.  They also have free duplicates so if  you have a need for a 
> wildcard, etc., it makes it really easy to deal with across multiple 
> platforms.
> 
> --
> There are 10 kinds of people in the world...
>         those who understand binary and those who don't.
> 
> -----Original Message-----
> From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] 
> On Behalf Of Ferguson, Chris
> Sent: Tuesday, May 24, 2016 10:27 AM
> To: ntsysadm@lists.myitforum.com
> Subject: Re: [NTSysADM] SSL Certificate
> 
> I use Digicert.  They have a great customer service model. If I make a 
> mistake, they walk me through it without charge. 
> 
> If I have trouble installing a certificate, they help me out there too. 
> 
> 
>> On May 24, 2016, at 9:23 AM, Liby Philip Mathew <lmat...@path-solutions.com> 
>> wrote:
>> 
>> Hi,
>> I want to purchase an SSL certificate for one of our support web site.
>> Which is the most preferred SSL certificate provider?  What will be the 
>> approximate cost?
>> Anything specific to be considered while purchasing the certificate?
>> This is the first time I am going to purchase/use a third party certificate.
>> Appreciate any assistance.
>> TIA
>> 
>> Regards
>> Mathew
>> Disclaimer
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> 
> 
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