We customize and use Semgrep a lot during our security assessments at IncludeSec because it helps us quickly locate potential areas of concern within large codebases. Static analysis tools (SAST) such as Semgrep are great for aiding our vulnerability hunting efforts and usually can be tied into Continuous Integration (CI) pipelines to help developers catch … Read more
The Unity game engine provides various means for getting external assets into a game, such as AssetBundles, for adding assets at runtime and the Asset Store, for purchasing third-party assets.
It’s possible for a GameObject to execute arbitrary code using no custom scripts, only components that are available by default in Unity. If the game uses Bolt or another visual scripting system, there are even more paths to code execution. In this blog I will cover how a malicious GameObject might get into a game, two specific methods I’m aware of for the GameObject to execute code, and possible ways to mitigate the risk.