I have a semi-bricked IPFire box

[jon]

Read thru the other thread for the chmod command:

Trouble when upgrading from core 157 to core 158

Hi all, since there are actually two issues discussed in this thread, I will try and bring some light into it: It is fine to experience an “Internal Server Error” or a temporarily unresponsive web interface during the update. This is because we change all the CGIs in the background due to this security vulnerability. Since there is a short timeframe where some CGIs are updated and some are not, quirks are expected here. This behaviour should only last for a couple of seconds, and everything…

chmod -v 755 /usr /usr/bin /usr/lib /usr/sbin /var /var/ipfire

This might make things easier!