
- #Macbook pro 2016 scbo file update#
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- #Macbook pro 2016 scbo file password#
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#Macbook pro 2016 scbo file password#
Only the new note has a special meaning, others are ignored.Īny other note strings cause the password to be treated as previously used.Ī hash mark will cause the password to be treated as a previously used entry. I assume the newest passwords will be at the end of the file, and the script will try those first. Each line contains the following: a note string, a colon, and a password string. The script requires a specific format for the keyfile.
#Macbook pro 2016 scbo file update#
Having previously used passwords available allows the script to update machines that may have been missed during previous runs of the script. It contains the new password, as well as any previously used passwords. The script works with a text document I call the keyfile. If not defined messages will be directed to the info channel. Method of identifying the message sender on Slack. User with adequate privileges on the server to access the keyfile. If you want FWPM to force an immediate reboot on success. If you elect to use custom_string, enter it here. custom_string will use the value in the following variable. Hash will be used if no value is present. Select the type of management string to use: hash or custom_string. The configuration file is broken up into sections roughly approximating the command line flags used in the previous versions. Slack_error_channel: #fwpw_manager_errors Slack_info_bot_name: FWPM informational message Path: /YourVolume/this/location/example_keyfile.txt Rather than simply hashing the password itself, FWPM hashes the entire keyfile for additional security. FWPM uses SHA-256 to generate the hash, or the SHA-2 hash function at a length of 256 bits (32 bytes). The goal of a hash function is that no two files will share the same hash value. When FWPM is run again on a client it will compare the hash of the current keyfile and the hash stored on the machine, if they are different it will signal the need to change the firmware password to a new value.Ī hash can be thought of as the finger print of a file. When FWPM successfully sets or changes the firmware password it computes a hash based on the contents of the keyfile and stores the results in nvram. How FWPM keeps track of the current password I also focused on utilizing firmwarepasswd, rather than the outdated setregproptool. The previous version, a shell script, always felt brittle to me. Version 2 represents a complete rewrite of Firmware Password Manager (FWPM). Or the admin could create a launchagent to run FWPM at every boot This allows the admin to then create an installer package containing the keyfile and a postflight action to run FWPM. The script is best used when it can be installed and left on the machine for future use. This approach allows the administrator to easily bring any number of machines up to the current password, and identify those whose firmware passwords aren't in the master list and need additional maintenance.įirmware_password_manager.py will use your keyfile to set a firmware password on a machine with no existing firmware password, attempt to change the existing firmware password to your new password or remove the current password. My solution centers on maintaining a single list of current and formerly used passwords that I call the keyfile. This approach seems error-prone and difficult to maintain beyond more than a small handful of machines. When I began this project there wasn't a solution available for actively managing firmware passwords, other than the "set-it-and-forget-it" method. Using all three methods can make a computer unusable should it be lost or stolen.ĭepending on the age of computer, removing the firmware password can be easy or incredibly difficult, please refer to the Notes section for more information about removing the password. FDE effectively scrambles the information written a storage device and renders it unreadable by unauthorized persons. Strong account passwords are always the first line of defense.

#Macbook pro 2016 scbo file full#
The other two are: using strong passwords on user accounts and FileVault to apply full disk encryption (FDE). The firmware password is one of three interlocking methods used to secure Apple computers. In a nutshell, the firmware password in Apple computers prevents non-privileged users from booting from a foreign device. Place the script (or binary) in a root-executable location.
#Macbook pro 2016 scbo file download#
