json_crypto_helper

Ruby based Burp extension for JSON Encryption/Decryption

Install

git clone https://github.com/SpiderLabs/json_crypto_helper.git

It is recommended to use RVM:

cd [your json_crypto_helper dir]
rvm --ruby-version use [email protected] --create

Run Burp on command line

cd [your json_crypto_helper dir]
JRUBY_HOME=$MY_RUBY_HOME java -XX:MaxPermSize=1G -Xmx1g -Xms1g -jar [burp_dir]/burpsuite_pro_vx.x.x.jar

Load the extension in Burp

• Configure Burp Suite Extender tool (Options tab): specify the path where the JRuby jar is installed. If you’re using RVM, it should be in your RVM project path, commonly installed here: $HOME/.rvm/rubies/jruby-x.x.x/lib/jruby.jar.
• Select Add in the Extensions tab.
• Select the extension type Ruby.
• Select the json_crypto_helper.rb file.

You should see your new extension showing up in the list.

Author

Christophe De La Fuente - at gmail: chrisdlf.dev