[cisco-voip] openSSL and heartbleed

Thu Apr 10 16:47:07 EDT 2014

Brian, 

In reading the advisory, it's not clear if Communication Manager v9 and earlier is addressed. There is something called Cisco Unified Communication Server (UCM) 9.2 and earlier, but that's confusing because it's not the name and there is no v9.2 available. 

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140409-heartbleed 

Any chance on getting this cleared up? 

Lelio 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst, Network Infrastructure 
Computing and Communications Services (CCS) 
University of Guelph 

519‐824‐4120 Ext 56354 
lelio at uoguelph.ca 
www.uoguelph.ca/ccs 
Room 037, Animal Science and Nutrition Building 
Guelph, Ontario, N1G 2W1 

----- Original Message -----

From: "Brian Meade" <bmeade90 at vt.edu> 
To: "Lelio Fulgenzi" <lelio at uoguelph.ca> 
Cc: "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
Sent: Tuesday, April 8, 2014 7:49:18 PM 
Subject: Re: [cisco-voip] openSSL and heartbleed 

Should all be the same underlying OS. 10.x would be the only one I'd worry about until someone can check if it is vulnerable since it may have a newer openssl version. 
On Apr 8, 2014 7:34 PM, "Lelio Fulgenzi" < lelio at uoguelph.ca > wrote: 

Thanks Brian. 

Can we assume that ELM and UCCx is also not affected? Same 9.x train. 

Sent from my iPhone 

On 2014-04-08, at 7:21 PM, Brian Meade < bmeade90 at vt.edu > wrote: 

<blockquote>

Here we can see CUCM does not respond to the Heartbeat Request with any data: 
<image.png> 

For the root inclined, we can find what openssl version is running: 

[root at CUCM912 ~]# openssl version 
OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 

This new heartbeat bug isn't valid as OpenSSL didn't even implement responding to the Heartbeat Requests until version 1.0.1. This is why CUCM doesn't respond with any data. 

I don't have a 10.x box to check with right now. 

Brian 

On Tue, Apr 8, 2014 at 7:01 PM, Brian Meade < bmeade90 at vt.edu > wrote: 

<blockquote>

Here's what I found testing against 9.1.2.10000.28 with a slightly modified python script: 

bmeade at ubuntu:~$ python vulnscript 10.3.11.250 
Connecting... 
Sending Client Hello... 
Waiting for Server Hello... 
... received message: type = 22, ver = 0301, length = 1012 
Sending heartbeat request... 
Unexpected EOF receiving record header - server closed connection 
No heartbeat response received, server likely not vulnerable 

This is assuming the released script is checking for the vulnerability properly. 

Brian 

On Tue, Apr 8, 2014 at 5:51 PM, Brian Meade < bmeade90 at vt.edu > wrote: 

<blockquote>

I haven't seen one. Currently trying to run the example python script against one of my clusters but having some trouble. 

On Tue, Apr 8, 2014 at 5:24 PM, Lelio Fulgenzi < lelio at uoguelph.ca > wrote: 

<blockquote>

weird. for some reason i fixated on the date beneath the entry in the search listing which had 2011, which made more sense. 

do you know if there is a more recent advisory? 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst, Network Infrastructure 
Computing and Communications Services (CCS) 
University of Guelph 

519‐824‐4120 Ext 56354 
lelio at uoguelph.ca 
www.uoguelph.ca/ccs 
Room 037, Animal Science and Nutrition Building 
Guelph, Ontario, N1G 2W1 

From: "Brian Meade" < bmeade90 at vt.edu > 
To: "Lelio Fulgenzi" < lelio at uoguelph.ca > 
Cc: "cisco-voip voyp list" < cisco-voip at puck.nether.net > 
Sent: Tuesday, April 8, 2014 5:16:32 PM 
Subject: Re: [cisco-voip] openSSL and heartbleed 

I don't think that's the correct advisory. That's a DoS vulnerability from 2004. 

Brian 

On Tue, Apr 8, 2014 at 5:11 PM, Lelio Fulgenzi < lelio at uoguelph.ca > wrote: 

<blockquote>

nevermind... my first search did not produce results... 

http://www.cisco.com/c/en/us/support/docs/csa/cisco-sa-20040317-openssl.html 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst, Network Infrastructure 
Computing and Communications Services (CCS) 
University of Guelph 

519‐824‐4120 Ext 56354 
lelio at uoguelph.ca 
www.uoguelph.ca/ccs 
Room 037, Animal Science and Nutrition Building 
Guelph, Ontario, N1G 2W1 

From: "Lelio Fulgenzi" < lelio at uoguelph.ca > 
To: "cisco-voip voyp list" < cisco-voip at puck.nether.net > 
Sent: Tuesday, April 8, 2014 5:09:01 PM 
Subject: openSSL and heartbleed 

Does anyone know if/when Cisco will be coming out with a security advisory about Open SSL and heartbleed? 

http://threatpost.com/seriousness-of-openssl-heartbleed-bug-sets-in/105309 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst, Network Infrastructure 
Computing and Communications Services (CCS) 
University of Guelph 

519‐824‐4120 Ext 56354 
lelio at uoguelph.ca 
www.uoguelph.ca/ccs 
Room 037, Animal Science and Nutrition Building 
Guelph, Ontario, N1G 2W1 

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