Decrypt an OPNsense config file

If you have an encrypted OPNsense configuration file then you can use the following to decrypt it. Note no password has been defined, add yours as required:

cat config.xml.aes | grep -Ev 'config.xml|:' | base64 -d | openssl enc -d -aes-256-cbc -out config.xml -pass pass: -salt -md sha512 -pbkdf2 -iter 100000