[cisco-voip] Security By Default and ITL (was Phones Not Getting Auth, Idle, Services URLS, etc)

Thu Aug 18 15:28:12 EDT 2011

Hi Bill,

I've seen issues when the hostname in the directory URL etc. doesn't match the server name (i.e. a dns name used for the UCM server name and an IP Address used in the directory URL), as this invalidates the matching of the subject name when validating the HTTPS cert, however this is assuming the ITL trusts the TVS service.

Are your phones accepting config changes from UCM, i.e. does it trust the config file from the TFTP server, I would have though it must have at some point, possibly when you were on 8.0. If it doesn't now, then something has gone wrong with the TFTP cert as part of the last upgrade, I suspect the ITL file no longer trusts the cert used by the TFTP server, I wonder if it's possible to obtain the TFTP cert from a back-up from before the upgrade and use it (just a thought, be careful ;).

If you are really stuck with deleting the ITL file from all the phones you should have a look at PhoneView from Unified FX (http://www.unifiedfx.com), among a number of other capabilities it can send bulk remote key presses based on macros, allowing for the deletion of ITL files remotely in a matter on minutes without leaving your chair ;)

There is a short demo on the Cisco support form on how to remotely delete the ITL file from multiple phones:

https://supportforums.cisco.com/videos/2572

Thanks

Stephen

On 18 Aug 2011, at 15:15, Carter, Bill wrote:

We are having a big problem with this.

We have a 2 node cluster. Upgraded servers from 7.1(3) to 8.0 then DRS backup. Installed 8.0 on two virtual servers then DRS restore. Then upgraded cluster to 8.5.

It looks like the physical server hostnames were in all caps and the VM servers are lower case.

Phones won't download ring tones all can't view any of the directories. The phones UCM server shows either a single UCM or the same UCM as #1 and #2.

Is there anything we can do besides deleting each phones ITL file?

-Bill Carter

On Aug 13, 2011, at 7:11 AM, "Jason Burns" <burns.jason at gmail.com<mailto:burns.jason at gmail.com>> wrote:

I wanted to follow up on this thread. The "show itl" command was a key piece of the troubleshooting process that let us track this down. After this incident though I wanted to take some time to explain how ITL and Security By Default worked, and also document the common troubleshooting steps I used.

Hopefully this document will help you out in the future!

<https://supportforums.cisco.com/docs/DOC-17679>https://supportforums.cisco.com/docs/DOC-17679

Support Forums mangles pictures in the thumbnail view, but you should be able to click on each diagram to full size it and get a better understanding of what goes on in the background.

-Jason Burns

On Thu, Jun 30, 2011 at 5:31 PM, Wes Sisk <<mailto:wsisk at cisco.com>wsisk at cisco.com<mailto:wsisk at cisco.com>> wrote:
Summary for the innocent bystanders:

* Phone previously registered to 7.1.5 cluster with no CTL.  Phone got ITL file from new cluster successfully.
* Phone console logs show:
2155: ERR 12:08:23.841097 SECD: EROR:verifyFile: sgn verify file failed</usr/ram/SEP00260BD749E9.cnf.xml>, errclass 8, errcode 19 (signer not in CTL)
2156: ERR 12:08:23.841825 SECD: EROR:verifyFile: verify FAILED,</usr/ram/SEP00260BD749E9.cnf.xml>
2157: NOT 12:08:23.844821 SECD: sendRespToClient: Sent the response to the TVS client, len : 2056
2158: NOT 12:08:23.860569 tftpClient: authorize file = 13, isEncr = 0

* phones show ITL downloading successfully. suspect problem with ITL file. Get TVS logs.

* This is where things got sketchy. CLI command 'show ITL' shows the TFTP entry for the publisher with a serial number.  We checked all certificates in ccmadmin under system->security->certificates.  No serial numbers match the current ITL file.  We tried regenerating CallManager.pem as that should be the cert TFTP uses. After regenerating, restarting TVS, and restarting TFTP the cli command 'show itl' still shows incorrect serial number for TFTP certificate.  This means ITL file is not being updated properly.

* Checked TVS logs.  Many red herrings there but one substantial error:
11:45:18.827 |   debug ERROR:writeFile () - Unable to open file /usr/local/cm/tftp/ITLFile.tlv for writing (errno - 13)
11:45:18.827 |   debug In function : tvsGetPublicKeyFromX509
11:45:19.100 |ITLFileRegenerated - New ITL File has been generated.

TVS could not write new ITL file.

Checked filesystem permissions on Matthew's box:
[root at server ~]# ls -la /usr/local/cm/tftp/ITLFile.tlv
-rw-r--r--  1 ctftp ccmbase 3664 May 25 13:18 /usr/local/cm/tftp/ITLFile.tlv

On lab box:
[root at CUCM85Pub sdi]# ls -la /usr/local/cm/tftp/ITLFile.tlv
-rw-r--r--  1 certbase ccmbase 4930 Jun 30 15:38 /usr/local/cm/tftp/ITLFile.tlv

Permissions issue.  On Matthew's box:
[root at server ~]# ps -eaf | grep -iE "TFTP|TVS"
certbase 31007 17132  0 15:35 ?        00:00:00 /usr/local/cm/bin/tvs
ctftp    31574 17132  0 15:36 ?        00:00:02 /usr/local/cm/bin/ctftp

Looks like ctftp service most likely wrote or created ITL file on May 25.  The owner of ITLFile.tlv should be certbase not ctftp.  We did:
1. chown certbase ITLFile.tlv - this set the correct owner
2. restarted TVS service - TVS regenerated ITL file and successfully wrote it to the file system
3. restart TFTP service so it could pickup the new ITL file from the file system.

After this phones successfully registered. So far there is at least one new bug out of this:
CSCtr27100 TVS inaccurately reports New ITL File has been generated

In CUCM 8.6 ctftp does indeed generate the ITL file.  In 8.5.1.11900-21 (aka 8.5.1su1) that Matthew is running ITL file should be generated by TVS.

Regards,
Wes

On 6/30/2011 4:17 PM, Matthew Loraditch wrote:
Well I just finished what amounted to 5 hours on the phone and 6 hours for Cisco. Most of that with Wes and apparently Ryan Ratliff and Jason Burns stopped by for a while as well!
Anyway we got it fixed. Wes said he is going to do a write up but the gist was the ITL cert was written by the wrong service and thus not matching up  and they had to go in with root and do something so that right service could properly create it.

Major Kudos to Wes and if we are ever within 50 miles or less of each other drinks are in order!

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at www.heliontechnologies.com<http://www.heliontechnologies.com/>
Support Issue? Email support at heliontechnologies.com<mailto:support at heliontechnologies.com> for fast assistance!

From: <mailto:cisco-voip-bounces at puck.nether.net> cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [<mailto:cisco-voip-bounces at puck.nether.net>mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Loraditch
Sent: Thursday, June 30, 2011 11:24 AM
To: Lelio Fulgenzi
Cc: <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

Wes is helping out and watching my case so far we have just verified normal settings, regenerated the tomcat certs to no avail and then totally factory defaulted the phone (the 123456789*0#) and now the phone comes up unprovisioned and won’t connect at all!
Engineers seem pretty stumped

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at www.heliontechnologies.com<http://www.heliontechnologies.com/>
Support Issue? Email support at heliontechnologies.com<mailto:support at heliontechnologies.com> for fast assistance!

From: Lelio Fulgenzi [<mailto:lelio at uoguelph.ca>mailto:lelio at uoguelph.ca]
Sent: Thursday, June 30, 2011 11:21 AM
To: Matthew Loraditch
Cc: Matthew Loraditch; <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

Let us know how that goes...

Sent from my iPhone

On Jun 30, 2011, at 9:09 AM, Matthew Loraditch <<mailto:MLoraditch at heliontechnologies.com>MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>> wrote:
Well I have done what Lelio suggested, I have rebooted the cluster. I noticed from the phone logs and in security settings that the certs they are getting say the hostname so I changed the CCMs from IP back to hostname. Still no dice…
Time to open a TAC case!

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at www.heliontechnologies.com<http://www.heliontechnologies.com/>
Support Issue? Email support at heliontechnologies.com<mailto:support at heliontechnologies.com> for fast assistance!

From: <mailto:cisco-voip-bounces at puck.nether.net> cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [<mailto:cisco-voip-bounces at puck.nether.net>mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Loraditch
Sent: Wednesday, June 29, 2011 9:57 PM
To: Lelio Fulgenzi
Cc: <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

Will give it a whirl in the am

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at www.heliontechnologies.com<http://www.heliontechnologies.com/>
Support Issue? Email support at heliontechnologies.com<mailto:support at heliontechnologies.com> for fast assistance!

From: Lelio Fulgenzi [<mailto:lelio at uoguelph.ca>mailto:lelio at uoguelph.ca]
Sent: Wednesday, June 29, 2011 9:43 PM
To: Matthew Loraditch
Cc: <mailto:wsisk at cisco.com> wsisk at cisco.com<mailto:wsisk at cisco.com>; <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

Try the service parameter I mentioned.

If you do a search on the archives, Wes posted a link to the doc bug.

Sent from my iPhone

On Jun 29, 2011, at 9:31 PM, Matthew Loraditch <<mailto:MLoraditch at heliontechnologies.com>MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>> wrote:
7942s and 7945s so far, in re someone else’s email have restarted tftp etc already.

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive
Timonium, MD 21093
support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at www.heliontechnologies.com<http://www.heliontechnologies.com/>
Support Issue? Email support at heliontechnologies.com<mailto:support at heliontechnologies.com> for fast assistance!

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca]<mailto:[mailto:lelio at uoguelph.ca]>
Sent: Wednesday, June 29, 2011 7:50 PM
To: Matthew Loraditch
Cc: <mailto:wsisk at cisco.com> wsisk at cisco.com<mailto:wsisk at cisco.com>; <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

Are these 7941/61? I had a problem where I had to change the service provisioning service parameter to external to make this work.

Sent from my iPhone

On Jun 29, 2011, at 6:23 PM, Matthew Loraditch <<mailto:MLoraditch at heliontechnologies.com>MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>> wrote:
Googled and found that and it’s not working….

Matthew Loraditch, CCVP, CCNA, CCDA
1965 Greenspring Drive

Timonium, MD 21093

<mailto:support at heliontechnologies.com>support at heliontechnologies.com<mailto:support at heliontechnologies.com>
(p) (410) 252-8830<tel:%28410%29%20252-8830>
(F) (443) 541-1593<tel:%28443%29%20541-1593>

Visit us at <http://www.heliontechnologies.com/> www.heliontechnologies.com<http://www.heliontechnologies.com/>

Support Issue? Email <mailto:support at heliontechnologies.com> support at heliontechnologies.com<mailto:support at heliontechnologies.com>
for fast assistance!

From: Wes Sisk
[mailto:wsisk at cisco.com]<mailto:[mailto:wsisk at cisco.com]>
Sent: Wednesday, June 29, 2011 5:24 PM
To: Matthew Loraditch
Cc: <mailto:cisco-voip at puck.nether.net> cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Phones Not Getting Auth, Idle, Services URLS, etc

These lines pretty much say it all. verification of the downloaded file failed. Delete the CTL/ITL from the phone and try again.
<https://supportforums.cisco.com/docs/DOC-15799#Manual_ITL_Delete>https://supportforums.cisco.com/docs/DOC-15799#Manual_ITL_Delete

Regards,
Wes

On 6/29/2011 5:03 PM, Matthew Loraditch wrote:

1715: ERR 16:59:35.170584 SECD: EROR:verifyFile: sgn verify file failed </usr/ram/SEP00260BD749E9.cnf.xml>, errclass 8, errcode 19 (signer
not in CTL)

1716: ERR 16:59:35.171327 SECD: EROR:verifyFile: verify FAILED, </usr/ram/SEP00260BD749E9.cnf.xml>

Sent from my Android phone using TouchDown (<http://www.nitrodesk.com/>www.nitrodesk.com<http://www.nitrodesk.com/>)
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