Description
A Pseudo-Random Number Generator (PRNG) uses the same seed each time the product is initialized.
Given the deterministic nature of PRNGs, using the same seed for each initialization will lead to the same output in the same order. If an attacker can guess (or knows) the seed, then the attacker may be able to determine the random numbers that will be produced from the PRNG.
Modes of Introduction:
– Architecture and Design
Related Weaknesses
CWE-335
Consequences
Other, Access Control: Other, Bypass Protection Mechanism
Potential Mitigations
Phase: Architecture and Design
Description:
Do not reuse PRNG seeds. Consider a PRNG that periodically re-seeds itself as needed from a high quality pseudo-random output, such as hardware devices.
Phase: Architecture and Design, Requirements
Description:
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.
CVE References
