← CA-3
CA-3(6) CA · Assessment, Authorization, and Monitoring

Transfer Authorizations

LOW MODERATE ✓ HIGH
1 Overlay 3 Related Controls
Graph
Export ▾

Requirements NIST SOURCE

Verify that individuals or systems transferring data between interconnecting systems have the requisite authorizations (i.e., write permissions or privileges) prior to accepting such data.

Discussion (NIST Supplemental Guidance)

To prevent unauthorized individuals and systems from making information transfers to protected systems, the protected system verifies—via independent means— whether the individual or system attempting to transfer information is authorized to do so. Verification of the authorization to transfer information also applies to control plane traffic (e.g., routing and DNS) and services (e.g., authenticated SMTP relays).

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for CA-3(6) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. individuals or systems transferring data between interconnecting systems have the requisite authorizations (i.e., write permissions or privileges) prior to accepting such data.

Examine

[SELECT FROM: Access control policy; procedures addressing system connections; system and communications protection policy; system interconnection agreements; information exchange security agreements; memoranda of understanding or agreements; service level agreements; non-disclosure agreements; system design documentation; system configuration settings and associated documentation; control assessment report; system audit records; system security plan; privacy plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with responsibilities for managing connections to external systems; network administrators; organizational personnel with information security and privacy responsibilities].

Test

[SELECT FROM: Mechanisms implementing restrictions on external system connections].

Overlays

Showing the OT/ICS overlay for the parent control CA-3 — see the CA-3(6) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (6)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for CA-3(6). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Access control policy
  • system and communications protection policy
  • system security plan
  • privacy plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Mechanisms implementing restrictions on external system connections

Other Records

  • procedures addressing system connections
  • system interconnection agreements
  • information exchange security agreements
  • memoranda of understanding or agreements
  • service level agreements
  • non-disclosure agreements
  • control assessment report
  • system audit records
  • other relevant documents or records