SC-16(1)—Transmission of Security and Privacy Attributes | Integrity Verification

IL5

IL6

>Control Description

Verify the integrity of transmitted security and privacy attributes.

>DoD Impact Level Requirements

No specific parameter values or requirements for this impact level.

>Discussion

Part of verifying the integrity of transmitted information is ensuring that security and privacy attributes that are associated with such information have not been modified in an unauthorized manner. Unauthorized modification of security or privacy attributes can result in a loss of integrity for transmitted information.

>Kubernetes Implementation Examples

# Verify integrity of transmitted attributes via signed JWT claims
apiVersion: security.istio.io/v1
kind: RequestAuthentication
metadata:
  name: require-attribute-jwt
  namespace: protected-workloads
spec:
  selector:
    matchLabels:
      app: api
  jwtRules:
  - issuer: "https://issuer.example.com"
    jwksUri: "https://issuer.example.com/.well-known/jwks.json"

Source: SC-16(1): JWT Integrity Verification

>Relevant Technologies

Technology-specific guidance with authoritative sources and verification commands.

Kubernetes

>Related Controls

AU-10

SC-8

>Assessment Interview Topics

Questions assessors commonly ask

Process & Governance:

•What policies govern the implementation of integrity verification?
•How are system and communications protection requirements defined and maintained?
•Who is responsible for configuring and maintaining the security controls specified in SC-16(1)?

Technical Implementation:

•How is integrity verification technically implemented in your environment?
•What systems, tools, or configurations enforce this protection requirement?
•How do you ensure that integrity verification remains effective as the system evolves?

Evidence & Documentation:

•What documentation demonstrates the implementation of SC-16(1)?
•Can you provide configuration evidence or system diagrams showing this protection control?
•What logs or monitoring data verify that this control is functioning correctly?

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