A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.
Use non-predictable inputs for seed generation.
Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems, or use the more recent FIPS 140-3 [REF-1192] if possible.
Use a PRNG that periodically re-seeds itself using input from high-quality sources, such as hardware devices with high entropy. However, do not re-seed too frequently, or else the entropy source might block.
Our security experts can help you identify and remediate CWE-337 vulnerabilities in your codebase.
Get Security Assessment