Hello everyone!
We're locked out of the Fire Linux shell on one of our FPR2110 devices. It's running:
Cisco Fire Linux OS v6.4.0 (build 2)
Cisco Firepower 2110 Threat Defense v6.4.0 (build 102)
It's managed by a FMCv on v6.7
When trying to console (when running "connect ftd" command) or SSH to the device we get:
>>> /etc/sudoers: syntax error near line 11 <<<
sudo: parse error in /etc/sudoers near line 11
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin
What are our options here roughly speaking? Is it possible to somehow inspect and hopefully fix the /etc/sudoers file? Or copy a new file over to the device? I guess SCP is not an option since SSH is failing? Would a reboot of the device revert the file? We hope to be able to solve this without reimage. The device is operational and working.
As for backups, there are backups of the FMCv, but only one backup of the device in this case (created in FMCv with "Managed Device Backup" function), and that device backup is stored on disk in the device itself (Retrieve to Management Center) function was not used.
Appreciate any tips or help here.