cyberstrikeus PL-3 System Security Plan Update
High-Level Description
Family: Planning (PL) Framework: NIST SP 800-53 Rev 5
No description available.
What to Check
- Verify PL-3 System Security Plan Update is documented in SSP
- Confirm control is operating effectively
- Review evidence of continuous monitoring for PL-3
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for PL-3 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
Refer to NIST SP 800-53 Rev 5 for the full control statement.
Implementation Guidance
Implement this control per organizational risk assessment and system categorization.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| PL-3 System Security Plan Update not implemented | Medium | Planning |
| PL-3 partially implemented | Low | Incomplete Planning |
CWE Categories
| CWE ID | Title |
|---|---|
| N/A | No direct CWE mapping |
References
- NIST SP 800-53 Rev 5 - PL-3
- 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 (none) reviewed