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https://github.com/advanced-security/demo-java

GitHub Advanced Security scanning tutorial repository for Java
https://github.com/advanced-security/demo-java

advanced-security demo devsecops example security static-analysis

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GitHub Advanced Security scanning tutorial repository for Java

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README 

        
# Code Scanning Java Tutorial



Welcome to the Code Scanning Java Tutorial! This tutorial will take you through how to set up Github Advanced Security: Code Scanning as well as interpret results that it may find. The following repository contains SQL injection vulnerability for demonstration purpose.



## Introduction



Code scanning is a feature that you use to analyze the code in a GitHub repository to find security vulnerabilities and coding errors. Any problems identified by the analysis are shown in GitHub.



You can use code scanning with CodeQL, a semantic code analysis engine. CodeQL treats code as data, allowing you to find potential vulnerabilities in your code with greater confidence than traditional static analyzers.



This tutorial with use CodeQL Analysis with Code Scanning in order to search for vulnerabilities within your code. 



## Instructions



Create repository fork

 

  

Begin by [creating a new repository from a fork (public)](https://docs.github.com/en/get-started/quickstart/fork-a-repo) or [cloning the repository](https://docs.github.com/en/repositories/creating-and-managing-repositories/cloning-a-repository).






Where creating the forked repository, make sure to 



1. Select the correct org / user account

2. Create a name for your new repository

3. Disable main branch only cloning

4. Create the repository from the template






Enable Code Scanning

 



#### Security tab



Click on the `Security` tab.






#### Set up code scanning



Click `Set up code scanning`.






#### Setup Workflow



Click the `Setup this workflow` button by CodeQL Analysis.






This will create a GitHub Actions Workflow file with CodeQL already set up. Since Java is a compiled language you will need to setup the build in later steps. See the [documentation](https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/running-codeql-code-scanning-in-your-ci-system) if you would like to configure CodeQL Analysis with a 3rd party CI system instead of using GitHub Actions.




  

Actions Workflow file




#### Actions Workflow



The Actions Workflow file contains a number of different sections including:

1. Checking out the repository

2. Initializing the CodeQL Action

3. Running Autobuilder (or code your own build steps if autobuild doesn't work)

4. Running the CodeQL Analysis






Click `Start Commit` -> `Commit this file` to commit the changes to _main_ branch.




  

Workflow triggers




#### Workflow triggers



There are a [number of events](https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows) that can trigger a GitHub Actions workflow. In this example, the workflow will be triggered on






- push to _main_ branch

- pull request to merge to _main_ branch

- on schedule, at 6:33 every Thursday



Setting up the new CodeQL workflow and committing it to _main_ branch in the step above will trigger the scan.






GitHub Actions Progress





 

#### GitHub Actions Progress



Click `Actions` tab -> `CodeQL`



Click the specific workflow run. You can view the progress of the Workflow run until the analysis completes.









Security Issues



  

Once the Workflow has completed, click the `Security` tab -> ` Code Scanning Alerts`. An security alert "Query built from user-controlled sources" should be visible.



#### Security Alert View



Clicking on the security alert will provide details about the security alert including: 


    

  • A description of the issue 
    • 

  • A tag to the CWE that it is connected to as well as the type of alert (Error, Warning, Note)
    • 

  • The line of code that triggered the security alert
    • 

  • The ability to dismiss the alert depending on certain conditions (`False positive`? `Won't fix`? `Used in tests`?)
    • 






#### Security Alert Description



Click `Show more` to view a full desciption of the alert including examples and links to additional information.






#### Security Full Description






Show Paths




#### Show Paths Button



CodeQL Analysis is able to trace the dataflow path from source to sink and gives you the ability to view the path traversal within the alert.



Click `show paths` in order to see the dataflow path that resulted in this alert.






#### Show Paths View









  

  

Fix the Security Alert



In order to fix this specific alert, we will need to ensure parameters used in the SQL query is validated and sanitized.



Click on the `Code` tab and [Edit](https://docs.github.com/en/free-pro-team@latest/github/managing-files-in-a-repository/editing-files-in-your-repository) the file [`IndexController.java`](./src/main/java/com/github/hackathon/advancedsecurityjava/Controllers/IndexController.java) in the `Controllers` folder, replace the content with the file [`fixme`](./fixme).






Click `Create a new branch for this commit and start a pull request`, name the branch `fix-sql-injection`, and create the Pull Request.



#### Pull Request Status Check



In the Pull Request, you will notice that the CodeQL Analysis has started as a status check. Wait until it completes.






#### Security Alert Details



After the Workflow has completed click on `Details` by the `Code Scanning Results / CodeQL` status check. 






#### Fixed Alert



Notice that Code Scanning has detected that this Pull Request will fix the SQL injection vulnerability that was detected before.






Merge the Pull Request. After the Pull Request has been merged, another Workflow will kick off to scan the repository for any vulnerabilties. 



#### Closed Security Alerts



After the final Workflow has completed, navigate back to the `Security` tab and click `Closed`. Notice that the **Query built from user-controlled sources** security alert now shows up as a closed issue.






#### Traceability



Click on the security alert and notice that it details when the fix was made, by whom, and the specific commit. This provides full traceability to detail when and how a security alert was fixed and exactly what was changed to remediate the issue.









Prevent new Alerts in a Pull Request




#### Create Pull Request from new feature Branch



Now that we have setup CodeQL Analysis and have fix a security alert, we can try to introduce an alert into a Pull Request.



Create a new Pull Request with the base branch as your `main` branch and the compare branch as the `new-feature` branch.






Make sure that the base branch is set to your own repositories `main` branch versus the original repository's `main` branch.



#### Pull Request Status Check



Once the Pull Request has been created, you will notice that the CodeQL Analysis has started as a status check. Wait until it completes.



After the Workflow has completed, the `Code Scanning Results / CodeQL` status check will have failed.

Notice that Code Scanning has detected that this Pull Request introduces a new security alert.






#### Alert Centric Notifications



Directly in the Pull Request, you will notice that GitHub Code Scanning bot has left a review of the Pull Request with the security alert details.

This will help developers to quickly identify security issues introduced in their Pull Requests.






This also allows for collaboration between developers and security teams to discuss the security alert and how to remediate it.






#### Security Alert Details



Click on `Show more details` by the new `Code Scanning Alert` to jump to the `Security` tab and view the security alert details.






Notice that the security alert was found `In pull request` and not in the `main` branch (production).






## Next Steps



Ready to talk about advanced security features for GitHub Enterprise? [Contact Sales](https://enterprise.github.com/contact) for more information!



Check out [GitHub's Security feature page](https://github.com/features/security) for more security features embedded into GitHub.



Check out the Code Scanning [documentation](https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/about-code-scanning) for additional configuration options and technical details.