Educause Security Discussion mailing list archives

Re: Finding Servers Using OpenSSL SSL/TLS


From: Mally Mclane <mally.mclane () BRISTOL AC UK>
Date: Fri, 11 Apr 2014 18:08:46 +0100

SBO..?

Service and Business owner?
On 11 Apr 2014 18:06, "Joel L. Rosenblatt" <joel () columbia edu> wrote:

We are sending out email to all of our SBO's that use a off campus
service - they have been tasked with contacting the vendors and
finding out what they are doing about it

Divide and conquer :-)

Joel


Joel Rosenblatt, Director Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel
Public PGP key
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90BD740BCC7326C3


On Fri, Apr 11, 2014 at 12:51 PM, Mike Cunningham
<mike.cunningham () pct edu> wrote:
Do you do anything with cloud/3rd party/off campus systems that Columbia
uses ?

-----Original Message-----
From: The EDUCAUSE Security Constituent Group Listserv [mailto:
SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Joel L. Rosenblatt
Sent: Friday, April 11, 2014 12:49 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Finding Servers Using OpenSSL SSL/TLS

We keep a constantly updating list of any IP address that accepts
connections on port 443 using netflow information, we test them for the
Heartbleed bug and inform the machine owner if they have a problem

Thanks,
Joel Rosenblatt




Joel Rosenblatt, Director Network & Computer Security Columbia
Information Security Office (CISO) Columbia University, 612 W 115th Street,
NY, NY 10025 / 212 854 3033 http://www.columbia.edu/~joel Public PGP key
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90BD740BCC7326C3


On Fri, Apr 11, 2014 at 11:33 AM, Pratt, Benjamin E.
<bepratt () stcloudstate edu> wrote:
Good morning everyone.

The question:

What would be the best option for determining remotely whether a server
utilizes OpenSSL SSL/TLS for encrypting https traffic?

The background:

I'm hoping the list can provide a little assistance in dealing with the
aftermath of the Heartbleed vulnerability.

The good news is a scan of our campus network indicates that we are
nearly fully patched. The bad news is that not all of the https servers
utilizing OpenSSL SSL/TLS are centrally controlled. This means that we
don't know which servers were patched before our first scan and therefore
where all of the servers that were vulnerable, over the past two years, are
located.

I am attempting to put together options that include changing out SSL
certificates and notifying users of previously vulnerable systems to update
passwords. If I am able to provide more specific information about the
scope of our endeavor it would certainly be an added value.

Thank you,

Ben

--

Benjamin Pratt
St. Cloud State University


Current thread: