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Security
Trail of Bits Blog·1d ago·5 min read
Package managers have an integrity problem
TL;DR
A review of 25 popular package managers revealed that many fail to adequately verify the integrity of downloaded packages, leaving them vulnerable to supply-chain attacks. Less than half use lockfiles to check for tampering by default, highlighting a significant security gap.
✦ Why It Matters
Ensure your package manager is configured to verify package integrity to protect against supply-chain attacks.
Key Takeaways
- Ensure your package manager verifies integrity by default.
- Use lockfiles with cryptographic hashes for added security.
- Regularly update your package manager to the latest version.
- Consider using package managers that verify signatures automatically.
How It Works
The testing harness utilized Docker containers and mitmproxy to simulate a compromised package repository, allowing for dynamic evaluation of package managers' security against malicious code injections.