topic Re: User-ID Agent - Failed to validate client certificate in General Topics

User-ID Agent - Failed to validate client certificate

luke.lloyd-jones — Tue, 29 Aug 2017 10:57:43 GMT

Hi,

I am running a v6.0 Palo virtual firewall and trying to connect to a user-id agent on a Windows 2k8r2 server. I am running version 8.0.4-5 of the UID agent.

I have configured as per all documentation however I am getting the following log messages popping up in the agent software:

Failed to validate client certificate, thread : 1, 1-0!

If I check the logs on the firewall itself I have following log messages popping up every 5 seconds:

pan_ssl_conn_open(pan_ssl_utils.c:464): Error: Failed to Connect to 192.168.5.100(source: 192.168.5.11), SSL error: error:00000000:lib(0):func(0):reason(0)(5)

I am truly at my wits end, cannot seem to find anything useful about this online and not sure how to troubleshoot this.

Does anyone have any suggestions?

Thanks,

Re: User-ID Agent - Failed to validate client certificate

ChrisRussell — Tue, 29 Aug 2017 14:34:59 GMT

Do you have an SSL/TSL profile?

There's a cert issue for sure with the SSL connection. So either the agent or the firewall are using out of date certs or some other mismatch.

Re: User-ID Agent - Failed to validate client certificate

kiwi — Tue, 29 Aug 2017 14:53:25 GMT

Hi @luke.lloyd-jones,

I have not tested versions that far apart but will this even work ?

Just asking because the UID agent release notes say it'll only work with supported releases :

The User‐ID agent is compatible with PAN‐OS 8.0 and earlier PAN‐OS releases that are still supported by Palo Alto Networks.

That said, PAN-OS 6.0 was end-of-life March 19, 2017.

It might work if you fix the certs as mentioned earlier but I'd go and upgrade to a supported version.

Cheers,

-Kiwi.

Re: User-ID Agent - Failed to validate client certificate

luke.lloyd-jones — Tue, 05 Sep 2017 08:31:52 GMT

Thanks for the tip, I thought those two would be compatible but turns out not. I actually just removed my v8 UID agent and installed the v6 version (had to remove the service first though with a "sc delete "UserIDService" command, super annoying) and all working now.

Re: User-ID Agent - Failed to validate client certificate

Tobi — Mon, 02 Oct 2017 13:59:52 GMT

I'm using PAN-OS 6.1 and have the same problem. Unfortuntely I have to use the latest version because this is the only version supported on my 2016 DC.

Certificates should be fine on both sides. Is there any other thing I can check?

Is it possible to disable the certificate check in User-ID Agent 8.0.4?

Re: User-ID Agent - Failed to validate client certificate

Tobi — Fri, 17 Nov 2017 15:07:43 GMT

This was a bug. Fixed with User-ID Agent 8.0.5!