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07-09-2024 03:24 PM
Does the Global Protect RADIUS implementation support Messaging Authentication?
If not, how quickly will a hotfix to patch this vulnerable implementation of RADIUS be released?
Background info:
When configuring Global Protect we used RADIUS to integrate RSA Secure ID as a second factor to LDAP, to ensure it took more than just a password to log in, but now it turns out RADIUS was designed to use MD5 hash sums in a way that is inherently insecure as detailed here: https://www.blastradius.fail/pdf/radius.pdf
RSA Secure ID released a patch which adds a new value to set in the RADIUS server config files (FreeRadius-Client-require-MA = yes), but the support documentation says the RADIUS client needs to support Messaging Authentication. https://community.securid.com/s/article/RSA-Announces-Critical-Security-Updates-for-RSA-ID-Plus-Comp...
07-09-2024 06:59 PM
Even I'm not sure this is what we are looking at, I found new command on 11.1.3 and above.
I'm not testing anything about it yet and also I'm not researching it on other branches.
"set auth radius-require-msg-authentic yes/no" might be answer for us.
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.1
admin@PA-VM> set auth ?
* strict-username-check Use strict username check for user role access
admin@PA-VM>
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.2
admin@PA-VM> set auth ?
* strict-username-check Use strict username check for user role access
admin@PA-VM>
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.3
admin@PA-VM> set auth ?
> radius-require-msg-authentic Flag to check Message-Authenticator in RADIUS response
> remote-host-check check remote host (client IP address) during auth redirects
> strict-username-check Use strict username check for user role access
admin@PA-VM>
07-10-2024 03:40 PM
Hello @mmason
based on advisory for CVE-2024-3596 the authentication check in RADIUS has been introduced in these versions and newer: PAN-OS 9.1.19, PAN-OS 10.1.14, PAN-OS 10.2.10, PAN-OS 11.0.7, PAN-OS 11.1.3.
Kind Regards
Pavel
07-09-2024 06:59 PM
Even I'm not sure this is what we are looking at, I found new command on 11.1.3 and above.
I'm not testing anything about it yet and also I'm not researching it on other branches.
"set auth radius-require-msg-authentic yes/no" might be answer for us.
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.1
admin@PA-VM> set auth ?
* strict-username-check Use strict username check for user role access
admin@PA-VM>
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.2
admin@PA-VM> set auth ?
* strict-username-check Use strict username check for user role access
admin@PA-VM>
admin@PA-VM> show system info | match sw-version
sw-version: 11.1.3
admin@PA-VM> set auth ?
> radius-require-msg-authentic Flag to check Message-Authenticator in RADIUS response
> remote-host-check check remote host (client IP address) during auth redirects
> strict-username-check Use strict username check for user role access
admin@PA-VM>
07-10-2024 09:14 AM
That looks promising! Will try it out.
07-10-2024 03:40 PM
Hello @mmason
based on advisory for CVE-2024-3596 the authentication check in RADIUS has been introduced in these versions and newer: PAN-OS 9.1.19, PAN-OS 10.1.14, PAN-OS 10.2.10, PAN-OS 11.0.7, PAN-OS 11.1.3.
Kind Regards
Pavel
07-10-2024 03:43 PM
Thanks for confirming, waiting for our maintenance window to apply 11.1.3 so we can enable this setting, much appreciated!
08-14-2024 04:55 PM
I ran this command on a PA-5430 with 11.1.3-h4 installed. I set it to yes to require message authentication and ran the show command to see if it was accepted but I got no output. As a result, the connection to my RADIUS server is still broken until I find a workaround.
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