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Assessment Title
Rule Text
NGINX must implement replay-resistant authentication mechanisms for network access.
Description
Discussion Text
A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be vulnerable to a replay attack.
Anti-replay is a cryptographically based mechanism; thus, it must use FIPS-approved algorithms. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. Note that the anti-replay service is implicit when data contains monotonically increasing sequence numbers and data integrity is ensured. Using DoW PKI is inherently compliant with this requirement for user and device access. Using Transport Layer Security (TLS), including application protocols such as HTTPS and DNSSEC, is also compliant.
Configure the information system to use the hash message authentication code (HMAC) algorithm for authentication services to Kerberos, SSH, web management tool, and any other access method.
Anti-replay is a cryptographically based mechanism; thus, it must use FIPS-approved algorithms. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. Note that the anti-replay service is implicit when data contains monotonically increasing sequence numbers and data integrity is ensured. Using DoW PKI is inherently compliant with this requirement for user and device access. Using Transport Layer Security (TLS), including application protocols such as HTTPS and DNSSEC, is also compliant.
Configure the information system to use the hash message authentication code (HMAC) algorithm for authentication services to Kerberos, SSH, web management tool, and any other access method.
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