MA-4(7)_disconnect-verification
DevOps & SecurityVerify session and network connection termination after the completion of nonlocal maintenance and diagnostic sessions.
How to use this skill
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MA-4(7) Disconnect Verification
Enhancement of: MA-4
High-Level Description
Family: Maintenance (MA) Framework: NIST SP 800-53 Rev 5
Verifying the termination of a connection once maintenance is completed ensures that connections established during nonlocal maintenance and diagnostic sessions have been terminated and are no longer available for use.
What to Check
- Verify MA-4(7) Disconnect Verification is documented in SSP
- Confirm control is operating effectively
- Review evidence of continuous monitoring for MA-4(7)
- Verify enhancement builds upon base control MA-4
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for MA-4(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
Verify session and network connection termination after the completion of nonlocal maintenance and diagnostic sessions.
Implementation Guidance
Verifying the termination of a connection once maintenance is completed ensures that connections established during nonlocal maintenance and diagnostic sessions have been terminated and are no longer available for use.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| MA-4(7) Disconnect Verification not implemented | Medium | Maintenance |
| MA-4(7) partially implemented | Low | Incomplete Maintenance |
CWE Categories
| CWE ID | Title |
|---|---|
| N/A | No direct CWE mapping |
References
- NIST SP 800-53 Rev 5 - MA-4(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 (AC-12) reviewed