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- About BKRogers
03-22-2023
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Mar 22, 2023Last Visited
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Latest posts by BKRogers
| Subject | Views | Posted |
|---|---|---|
| 155 | 01-05-2023 09:56 AM | |
| 298 | 01-05-2023 07:24 AM |
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| Member Since | 08-25-2021 05:06 PM |
| Date Last Visited | 03-22-2023 05:58 PM |
| Posts | 2 |
01-05-2023
09:56 AM
So I have been working through this some. I have a Microsoft NPS radius server that worked fine with 10.1, but upon upgrading to 10.2 RADIUS authentications have failed. It appears to be the TLS version which is causing the problem. By default my NPS server only uses TLS 1.0, but 10.2 requires a minimum of TLS 1.1, and I have only got it working with TLS 1.2.
To enabled TLS 1.2 on NPS I had to add a registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RasMan\PPP\EAP\13 Dword called TlsVersion
Value is a hex OR of
TLS 1.0 0xC0
TLS 1.1 0x300
TLS 1.2 0xC00
So the downside I am finding, I have to enable TLS 1.2 which gets 10.2 working, but then it breaks my 10.1 firewalls.
Even when I use the value 0xF30
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01-05-2023
07:24 AM
Hello,
Thought I would pass on this solution I found. After upgrading our Panorama from 10.1 to 10.2, our RADIUS authentication no longer worked. The root cause was our Microsoft RADIUS server was using TLS 1.0 for the PEAP-MSCHAP TLS handshake and 10.2 REQUIRES TLS 1.1.
The solution is to add the following registry setting to your Microsoft NPS server
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RasMan\PPP\EAP\13
add a DWORD TlsVersion with a hex value of 0x3C0
then reboot.
This value will allow the MS NPS server to negotiate TLS 1.0 and TLS 1.1.
You probably DONT want to enable TLS 1.2 yet. I found enabling TLS 1.2 will cause 10.1 PANOS to fail the RADIUS handshake.
Related MS Link
Microsoft security advisory: Update for Microsoft EAP implementation that enables the use of TLS: October 14, 2014 - Microsoft Support
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