Discover vulnerabilities across a codebase with CodeQL, our industry-leading semantic code analysis engine. CodeQL lets you query code as though it were data. Write a query to find all variants of a vulnerability, eradicating it forever. Then share your query to help others do the same.
CodeQL is free for research and open source.Try CodeQL on LGTM.com
from DataFlow::PathNode source, DataFlow::PathNode sink, UnsafeDeserializationConfig conf where conf.hasFlowPath(source, sink) select sink.getNode().(UnsafeDeserializationSink).getMethodAccess(), source, sink, "Unsafe deserialization of $@.", source.getNode(), "user input"
Run real queries on popular open source codebases using the CodeQL query console on LGTM.com. See how powerful it is to discover a bad pattern and then find similar occurrences across the entire codebase. In the example above, an unsafe deserialization pattern is coded using the built-in CodeQL libraries for data flow and taint tracking.
Now that you’ve seen the power of the CodeQL language on LGTM.com, you're ready to write and run queries locally.Install CodeQL for Visual Studio Code
By downloading, you agree to the GitHub CodeQL Terms & Conditions.
Step 1: get a CodeQL database
Step 2: query the code and find vulnerabilities
$ # Clone the project $ git clone https://github.com/m-y-mo/struts_9805 $ # Create a CodeQL database $ codeql database create ./struts_db -s ./struts_9805 \ -j 0 -l java --command "mvn -B -DskipTests \ -DskipAssembly"
You can create CodeQL databases yourself for any project that's under an OSI-approved open source license. To download CodeQL and get started, visit the CodeQL CLI docs.
Challenge your vulnerability hunting skills and get a quick lesson on using the CodeQL libraries with our Capture the Flag event. Enter before December 13 for a chance to win cool prizes by finding XSS-unsafe JQuery plugins in Bootstrap.
Take a look at the previous challenges.Go Capture the Flag
GitHub CodeQL can only be used on codebases that are released under an OSI-approved open source license, or to perform academic research. It can't be used for automated analysis, continuous integration or continuous delivery, whether as part of normal software engineering processes or otherwise. For these uses, contact the sales team.