CA-3(7)_transitive-information-exchanges
DevOps & SecurityCA-3(7)_transitive-information-exchanges is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.
Identify transitive (downstream) information exchanges with other systems through the systems identified in [CA-3a](#ca-3_smt.a) ;
How to use this skill
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CA-3(7) Transitive Information Exchanges
Enhancement of: CA-3
High-Level Description
Family: Assessment, Authorization, and Monitoring (CA) Framework: NIST SP 800-53 Rev 5
Transitive or "downstream" information exchanges are information exchanges between the system or systems with which the organizational system exchanges information and other systems. For mission-essential systems, services, and applications, including high value assets, it is necessary to identify such information exchanges. The transparency of the controls or protection measures in place in such downstream systems connected directly or indirectly to organizational systems is essential to understanding the security and privacy risks resulting from those information exchanges. Organizational systems can inherit risk from downstream systems through transitive connections and information exchanges, which can make the organizational systems more susceptible to threats, hazards, and adverse impacts.
What to Check
- Verify CA-3(7) Transitive Information Exchanges is documented in SSP
- Validate all 2 control requirements are implemented
- Confirm control is operating effectively
- Review evidence of continuous monitoring for CA-3(7)
- Verify enhancement builds upon base control CA-3
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for CA-3(7) implementation details. Verify the organization has documented how this control is satisfied.
Step 2: Validate Implementation
# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly
# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null
Step 3: Test Operating Effectiveness
Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.
Tools
| Tool | Purpose | Usage |
|---|---|---|
| Manual Review | Documentation and interview-based | N/A |
Remediation Guide
Control Statement
Identify transitive (downstream) information exchanges with other systems through the systems identified in CA-3a ; and Take measures to ensure that transitive (downstream) information exchanges cease when the controls on identified transitive (downstream) systems cannot be verified or validated.
Implementation Guidance
Transitive or "downstream" information exchanges are information exchanges between the system or systems with which the organizational system exchanges information and other systems. For mission-essential systems, services, and applications, including high value assets, it is necessary to identify such information exchanges. The transparency of the controls or protection measures in place in such downstream systems connected directly or indirectly to organizational systems is essential to understanding the security and privacy risks resulting from those information exchanges. Organizational systems can inherit risk from downstream systems through transitive connections and information exchanges, which can make the organizational systems more susceptible to threats, hazards, and adverse impacts.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| CA-3(7) Transitive Information Exchanges not implemented | Medium | Assessment, Authorization, and Monitoring |
| CA-3(7) partially implemented | Low | Incomplete Assessment, Authorization, and Monitoring |
CWE Categories
| CWE ID | Title |
|---|---|
| N/A | No direct CWE mapping |
References
- NIST SP 800-53 Rev 5 - CA-3(7)
- NIST SP 800-53A Rev 5 (Assessment Procedures)
- NIST SP 800-53 Rev 5 Full Catalog
Checklist
- Control documented in SSP
- Implementation evidence collected
- Operating effectiveness validated
- Continuous monitoring in place
- Related controls (SC-7) reviewed