# RA-5(3)_breadth-and-depth-of-coverage

> Define the breadth and depth of vulnerability scanning coverage.

- Skill: `cyberstrikeus/ra-5-3-breadth-and-depth-of-coverage` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/ra-5-3-breadth-and-depth-of-coverage`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/ra-5-3-breadth-and-depth-of-coverage/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/ra-5-3-breadth-and-depth-of-coverage

---


# RA-5(3) Breadth and Depth of Coverage

> **Enhancement of:** RA-5

## High-Level Description

**Family:** Risk Assessment (RA)
**Framework:** NIST SP 800-53 Rev 5

The breadth of vulnerability scanning coverage can be expressed as a percentage of components within the system, by the particular types of systems, by the criticality of systems, or by the number of vulnerabilities to be checked. Conversely, the depth of vulnerability scanning coverage can be expressed as the level of the system design that the organization intends to monitor (e.g., component, module, subsystem, element). Organizations can determine the sufficiency of vulnerability scanning coverage with regard to its risk tolerance and other factors. Scanning tools and how the tools are configured may affect the depth and coverage. Multiple scanning tools may be needed to achieve the desired depth and coverage. [SP 800-53A](#a21aef46-7330-48a0-b2e1-c5bb8b2dd11d) provides additional information on the breadth and depth of coverage.

## What to Check

- [ ] Verify RA-5(3) Breadth and Depth of Coverage is documented in SSP
- [ ] Confirm control is operating effectively
- [ ] Review evidence of continuous monitoring for RA-5(3)
- [ ] Verify enhancement builds upon base control RA-5

## How to Test

### Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for RA-5(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

Define the breadth and depth of vulnerability scanning coverage.

### Implementation Guidance

The breadth of vulnerability scanning coverage can be expressed as a percentage of components within the system, by the particular types of systems, by the criticality of systems, or by the number of vulnerabilities to be checked. Conversely, the depth of vulnerability scanning coverage can be expressed as the level of the system design that the organization intends to monitor (e.g., component, module, subsystem, element). Organizations can determine the sufficiency of vulnerability scanning coverage with regard to its risk tolerance and other factors. Scanning tools and how the tools are configured may affect the depth and coverage. Multiple scanning tools may be needed to achieve the desired depth and coverage. [SP 800-53A](#a21aef46-7330-48a0-b2e1-c5bb8b2dd11d) provides additional information on the breadth and depth of coverage.

## Risk Assessment

| Finding                                               | Severity | Impact                     |
| ----------------------------------------------------- | -------- | -------------------------- |
| RA-5(3) Breadth and Depth of Coverage not implemented | Medium   | Risk Assessment            |
| RA-5(3) partially implemented                         | Low      | Incomplete Risk Assessment |

## CWE Categories

| CWE ID | Title                 |
| ------ | --------------------- |
| N/A    | No direct CWE mapping |

## References

- [NIST SP 800-53 Rev 5 - RA-5(3)](https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=ra-5.3)
- [NIST SP 800-53A Rev 5 (Assessment Procedures)](https://csrc.nist.gov/pubs/sp/800/53/a/r5/final)
- [NIST SP 800-53 Rev 5 Full Catalog](https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final)

## Checklist

- [ ] Control documented in SSP
- [ ] Implementation evidence collected
- [ ] Operating effectiveness validated
- [ ] Continuous monitoring in place
- [ ] Related controls (none) reviewed