SFVH (SFOS 19.5.2 MR-2-Build624) New WAF bug throwing Error 404 on authentication

Hi Saarbruecken,

Thank you for reaching out to Sophos Community.

Would it be possible to raise a case on Support and share the case ID here?

Sure, I will do that and get back to you soon.

Hey Saarbruecken , 

Thank you for reaching out to the community, just one quick question is your WAF configured with the multiple domains ?

That's correct, I have multiple domains in my WAF. The problem only occurs for that domain, when you change its WAF rule. Instead of loading the login / password prompt, you get an error 404 in your browser. Then open your authentication polocy and save it again, the WAF will reload and WAF authentication for that domain works again.

Hello Saarbruecken ,

I guess we have a work around to fix your issue, seems similar to a known issue - NC-78563/NC-117603.
Would request you to log a service request and revert us with the service request number, I'll get this expedited for you.

I have raised a new support case with the id 06570546

Hey Saarbruecken thank you for the update, I'll get this progressed right away, just share the support access id on the service request !! 

Workaround if you also experience the issue:

Edit the Protection Policy and press Save, then Form based authentication should work again. Sometimes you have to do the same with the authentication policy, that belongs to your Protection Policy. You have to do this every time after editing your WAF rule(s).

Hi Saarbruecken ,

can you please enable support access on your SFOS system and send the access ID to me in a PM?

In order to determine the root cause of your issue we'd need to analyze your config and logs.

Thank you,

Janos

Support Access has been enabled, please check support case 06570546