NIST 800-53 r5 · Controls catalogue · Family SC
SC-22Architecture and Provisioning for Name/Address Resolution Service
Ensure the systems that collectively provide name/address resolution service for an organization are fault-tolerant and implement internal and external role separation.
Last updated: 22 August 2026 07:11 UTC
Implementations targeting this control (0)
- No implementations targeting this control yet.
ATT&CK techniques this control mitigates (7)
- T1071 Application Layer Protocol Command And Control
- T1071.001 Web Protocols Command And Control
- T1071.002 File Transfer Protocols Command And Control
- T1071.003 Mail Protocols Command And Control
- T1071.004 DNS Command And Control
- T1568 Dynamic Resolution Command And Control
- T1568.002 Domain Generation Algorithms Command And Control
Weaknesses this control addresses (6)AI-assisted
CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.
| CWE | Name | CVEs | Why this control addresses it |
|---|---|---|---|
CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | 11,000+ | Internal/external role separation directly prevents external actors from obtaining sensitive internal host and network information via name resolution. |
CWE-284 | Improper Access Control | 6,900+ | Role separation implements access control boundaries between internal and external name resolution services. |
CWE-400 | Uncontrolled Resource Consumption | 3,800+ | Fault tolerance reduces the impact of resource-exhaustion attacks against the organization's name services. |
CWE-770 | Allocation of Resources Without Limits or Throttling | 2,400+ | Redundant provisioning limits the effectiveness of uncontrolled allocation attacks on resolution infrastructure. |
CWE-668 | Exposure of Resource to Wrong Sphere | 800+ | Fault-tolerant architecture with role separation keeps internal resolution resources from being exposed to external spheres. |
CWE-923 | Improper Restriction of Communication Channel to Intended Endpoints | 69 | Explicit internal/external separation restricts name-resolution channels to their intended communication endpoints. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
| No CVEs annotated to this control yet — the per-CVE backfill is in progress. | ||||