GitHub Removes Malicious Pull Requests Targeting Open Source...

GitHub recently removed 27 malicious pull requests from various open source repositories, as part of an ongoing effort to combat low-effort attacks aimed at injecting harmful code. These so-called "shotgun attacks" involve targeting numerous repositories with simple, seemingly innocuous changes, hoping that some will be merged unnoticed by busy maintainers. An example highlighted by EXO Labs co-founder Alex Cheema involved a backdoor attempt on the exo-explore repository, with obfuscated code that could potentially lead to remote code execution. Despite the lack of sophistication, the sheer volume of these attacks increases their likelihood of success. To counteract this threat, experts recommend thorough review of pull requests, implementing branch protection rules, and using tools like GitHub Copilot and CodeRabbit to identify suspicious code. Additionally, services like Socket can detect and flag malicious indicators in dependencies, providing an extra layer of security for developers using open source code.

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