Joern is a platform for analyzing source code, bytecode, and binary executables. It generates code property graphs (CPGs), a graph representation of code for cross-language code analysis. Code property graphs are stored in a custom graph database. This allows code to be mined using search queries formulated in a Scala-based domain-specific query language. Joern is developed with the goal of providing a useful tool for vulnerability discovery and research in static program analysis.

Website: https://joern.io

Documentation: https://docs.joern.io/

Specification: https://cpg.joern.io

• JDK 11 (newer versions might work, but have not been properly tested)
• optional: gcc and g++ (for auto-discovery of C/C++ system header files if included/used in your C/C++ code)

wget https://github.com/joernio/joern/releases/latest/download/joern-install.sh
chmod +x ./joern-install.sh
sudo ./joern-install.sh
joern

Compiling (synthetic)/ammonite/predef/interpBridge.sc
Compiling (synthetic)/ammonite/predef/replBridge.sc
Compiling (synthetic)/ammonite/predef/DefaultPredef.sc
Compiling /home/tmp/shiftleft/joern/(console)

     ██╗ ██████╗ ███████╗██████╗ ███╗   ██╗
     ██║██╔═══██╗██╔════╝██╔══██╗████╗  ██║
     ██║██║   ██║█████╗  ██████╔╝██╔██╗ ██║
██   ██║██║   ██║██╔══╝  ██╔══██╗██║╚██╗██║
╚█████╔╝╚██████╔╝███████╗██║  ██║██║ ╚████║
 ╚════╝  ╚═════╝ ╚══════╝╚═╝  ╚═╝╚═╝  ╚═══╝

joern>

If the installation script fails for any reason, try

./joern-install --interactive

Quick way to develop and test QueryDB:

sbt stage
./querydb-install.sh
./joern-scan --list-query-names

The last command prints all available queries - add your own in querydb, run the above commands again to see that your query got deployed. More details in the separate querydb readme

See details in the javasrc2cpg readme