ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
During a security design review, a team plans to include an open-source cryptographic library obtained from a public repository. In line with secure software supply-chain guidance for selecting third-party components, which evaluation will provide the strongest assurance that the library will not become an unpatched attack vector over time?
Benchmark the library's execution speed against proprietary alternatives to ensure adequate performance margins.
Check the number of community stars and forks to gauge overall popularity in the developer ecosystem.
Verify that the library's public API follows the organization's internal coding style and naming conventions.
Confirm that the project maintains a regular patch cadence and publishes timely security advisories for newly discovered vulnerabilities.
Industry frameworks such as the NIST Secure Software Development Framework advise verifying that any third-party component is actively maintained and that its maintainers promptly address reported vulnerabilities. A well-established process for issuing security advisories and releasing timely patches indicates that discovered flaws are likely to be fixed before attackers can exploit them. While popularity, performance, or documentation quality may influence other decisions, they do little to reduce the risk that a dormant or poorly supported library will accumulate unpatched vulnerabilities, making the first choice the most effective risk-reduction measure.
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Supply Chain
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