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MQSeries.net Forum IndexIBM MQ SecurityCertificate validation failed AMQ9656

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Anant.v
PostPosted: Tue Sep 05, 2017 4:03 am Post subject: Certificate validation failed AMQ9656 Reply with quote

Apprentice

Joined: 26 Nov 2014
Posts: 27
Location: Malaysia

Hi All,


Need you advice in an issue that iam facing.


we are in the process of upgrading MQ fix pack 8.0.0.7. So we have updated the passive node to 8.0.0.7 and failed over the MQ qmgrs to passive node. Active node has 8.0.0.2.

The issue we faced was, All the QMGR certificates which were working on MQ v8.0.0.2 stopped working on MQ v8.0.0.7 with MQ logs stating below error :


09/05/2017 01:11:21 PM - Process(19599.80) User(mqm) Program(amqrmppa)
Host(XXXXXXXXXXXX) Installation(Installation1)
VRMF(8.0.0.7) QMgr(XXXXXXX)

AMQ9656: An invalid SSL certificate was received from the remote system.

EXPLANATION:
An SSL certificate received from the remote system was not corrupt but failed
validation checks on its ASN fields. The channel is '????'; in some cases its
name cannot be determined and so is shown as '????'. The channel did not start.
ACTION:
Ensure that the remote system has a valid SSL certificate. Restart the channel.



Nothing has changed. Same clients , same QMGR kdb works on MQv8.0.0.2


Any ideas on this ?
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fjb_saper
PostPosted: Tue Sep 05, 2017 5:22 am Post subject: Reply with quote

Grand Poobah

Joined: 18 Nov 2003
Posts: 19398
Location: LI,NY

Deprecated cipher specs? No longer satisfying minimum key length requirements?
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Anant.v
PostPosted: Tue Sep 05, 2017 5:25 am Post subject: Reply with quote

Apprentice

Joined: 26 Nov 2014
Posts: 27
Location: Malaysia

keysize is 1024.

and to allow deprecated ciphers, i have added AllowSSLV3=Y and AllowWeakCipher in qm.ini stanza
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fjb_saper
PostPosted: Tue Sep 05, 2017 6:16 am Post subject: Reply with quote

Grand Poobah

Joined: 18 Nov 2003
Posts: 19398
Location: LI,NY

Anant.v wrote:
keysize is 1024.

and to allow deprecated ciphers, i have added AllowSSLV3=Y and AllowWeakCipher in qm.ini stanza

Forget about getting a TLS connection with that key size. What Cipher were you using?
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Anant.v
PostPosted: Tue Sep 05, 2017 7:13 am Post subject: Reply with quote

Apprentice

Joined: 26 Nov 2014
Posts: 27
Location: Malaysia

TRIPLE_DES_SHA_US.


Iam aware its too old, but thats whats being used as of now, and so i have added qm.ini entries.
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Vitor
PostPosted: Tue Sep 05, 2017 7:43 am Post subject: Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 24614
Location: Ohio, USA

Anant.v wrote:
TRIPLE_DES_SHA_US.


You might as well get the channel working by taking off the encryption as use that. The channel will be about as secure.

My cat can crack that.

(We've had to ban him from the PC)
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Anant.v
PostPosted: Tue Sep 05, 2017 7:04 pm Post subject: Reply with quote

Apprentice

Joined: 26 Nov 2014
Posts: 27
Location: Malaysia

Guys its resolved now. Opened a PMR for it, and the solution was to just change kdb password and re-stash it.

It works !!!

This can be marked as closed now...

Thanks for your advice !

Cheers
Ananth
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bruce2359
PostPosted: Wed Sep 06, 2017 3:42 am Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 7847
Location: US: west coast, almost. Otherwise, enroute.

This http://www-01.ibm.com/support/docview.wss?uid=swg1IC96853 addresses the ambiguity of the AMQ9656 error. If the kdb can't be opened, then the cert can't be verified. I'd have thought that a manual START CHANNEL attempt would have resulted in a prompt for kdb password.
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