Dismiss Join GitHub today. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Mar 23, 2019  RCE on Rails 5.2.2 using a path traversal (CVE-2019-5418) and a deserialization of Ruby objects (CVE-2019-5420) - mpgn/Rails-doubletap-RCE. Credentials.yml.enc and master.key. Fix possible dev mode RCE If the secretkeybase is nil in dev or test generate a key from random bytes and store it in a tmp file. This prevents the app.

• Rails 5.2.2 Generate Master Key Command Code
• Rails 5.2.2 Generate Master Key Commands

Upgrading Ruby on Rails. Rails provides the app:update command (rake rails:update on 4.2 and earlier). After updating the Rails version in the Gemfile, run this command. This will help you with the creation of new files and changes of old files in an interactive session. Use rake secret to generate new keys for the development and test. Before Rails 5.1, there were two interfaces for handling HTML forms: formfor for model instances and formtag for custom URLs. Rails 5.1 combines both of these interfaces with formwith, and can generate form tags based on URLs, scopes or models. Using just a URL. Mar 26, 2018  The second file, config/master.key, is the file where your RAILSMASTERKEY will be placed. The RAILSMASTERKEY is the key that Rails will use to decrypt your config/credentials.yml.enc. It is NOT a good idea to version config/master.key file into your source control tool. This is only viable because Rails encrypts the file with a master key that's generated into a version control ignored config/master.key — Rails will also look for that key in ENV'RAILSMASTERKEY'. Rails also requires the key to boot in production, so the credentials can be read. To edit stored credentials use bin/rails credentials:edit. First commit. Created Project (15664975) Commits.

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If your master.key has been compromised, you might want to regenerate it.

Rails 5.2.2 Generate Master Key Command Code

No key regeneration feature at the moment.We have to do it manually.

1. Copy content of original credentials rails credentials:show somewhere temporarily.
2. Remove config/master.key and config/credentials.yml.enc
3. Run EDITOR=vim rails credentials:edit in the terminal: This command will create a new master.key and credentials.yml.enc if they do not exist.
4. Paste the original credentials you copied (step 1) in the new credentials file (and save + quit vim)
5. Add and Commit the file config/credentials.yml.enc

Important

• Make sure config/master.key is listed in .gitignore and NOT tracked by git.
• The command EDITOR=vim rails credentials:edit might not work if you require credential value in some file (initializers or database.yml).I had the problem with devise.rb. I just uncommented the line secret_key = .. just the time to run the command to regenerate the credentials file, and then commented the line out again.
• If you want to use Sublime to edit the credentials, you can replace the command EDITOR=vim rails credentials:edit by EDITOR='/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl -w' rails credentials:edit

Rails 5.2.2 Generate Master Key Commands

source: https://blog.eq8.eu/til/rails-52-credentials-tricks.html