Bug 462429

Summary: expired VPN server certificate completely breaks VPN functionality in Network Manager
Product: [Plasma] plasmashell Reporter: Vadym Krevs <vkrevs>
Component: Networking in generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 5.26.4   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Vadym Krevs 2022-11-30 09:57:05 UTC
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. My company uses a VPN that can be connected to using Juniper Network Connect.
2. Apparently, one of the certificates installed on the VPN server has expired. So attempting to connect to that VPN connection results in a prompt from KDE Daemon 

    Check failed for certificate from VPON server "<IP ADDRESS>
    Reason: certificate expired
    Accept it anyway?

with OK and Cancel buttons.

3. I click "OK" to connect nevertheless.


OBSERVED RESULT
Nothing happens. The VPN connection window closes without establishing a connection. 
After that it is impossible to establish new VPN connections via this or any other VPN connections - the connection dialog does not even come up/

EXPECTED RESULT
I can still connect to the VPN despite certificate expiration  (as implied by the KDE Daemon prompt) and/or the other VPN connections can still be established.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 5.26.4
(available in About System)
KDE Plasma Version: 5.26.4
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.7

ADDITIONAL INFORMATION
Comment 1 Ben Cooksley 2024-12-23 18:23:45 UTC
Bulk transfer as requested in T17796
Comment 2 Nate Graham 2025-06-24 19:51:12 UTC
Thanks for the bug report, and I'm sorry we weren't able to get to it yet. Can I ask you to see if the issue is still happening in Plasma 6.4 or later?
Comment 3 Vadym Krevs 2025-06-24 20:01:27 UTC
Sadly, I have no way of checking this anymore. We got acquired, switched to a different VPN, and last but not least my work laptop is a Mac ...
Comment 4 Nate Graham 2025-06-24 20:06:23 UTC
Yikes! Well unfortunately I think that leaves this bug dead in the water without a way for anyone to test it.