5GC_API_parse

Description

5GC API parse is a BurpSuite extension allowing to assess 5G core network functions, by parsing the OpenAPI 3.0 not supported by previous OpenAPI extension in Burp, and generating requests for intrusion tests purposes.

Installation

Jython installation (required)

• Download Jython 2.7.x Installer Jar from https://www.jython.org/download
• Install Jython by default:

java -jar jython-installer-2.7.2.jar

• Download PyYAML from https://github.com/yaml/pyyaml
• Install PyYAML:

./jython PyYAML-5.4.1/setup.py install

• Open Burp on Extender / Options
• In Python Environment, set the location of the Jython JAR to the installed one

5GC API parse

• Set Extension file to /5GC_API_parse.py
• Click Next
• The addon is now installed, a new tab named 5GC API parse should appear

Usage

Just provide a target address with URL scheme, a port number and a OpenAPI 3.0 file you want to process and voilà:

You are ready to use it in the repeater, intruder to fuzz, etc.

Quick demo:

Change log

• 1.2 (07/20/2021): Core reorganization + adding Swagger browsing for associated YAML files and a clear-all button
• 1.1 (07/20/2021): Fixing errors in headers and adapting default values to actual 5G core
• 1.0 (05/20/2021): Initial release