sa-18-1-multiple-phases-of-system-development-life-cycle

name	SA-18(1)_multiple-phases-of-system-development-life-cycle
description	Multiple Phases of System Development Life Cycle
category	configuration
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","sa-18-1","sa","enhancement"]
tech_stack	["any"]
cwe_ids	["CWE-16"]
chains_with	[]
prerequisites	["SA-18"]
severity_boost	{}

SA-18(1) Multiple Phases of System Development Life Cycle

Enhancement of: SA-18

High-Level Description

Family: System and Services Acquisition (SA) Framework: NIST SP 800-53 Rev 5

No description available.

What to Check

• Verify SA-18(1) Multiple Phases of System Development Life Cycle is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for SA-18(1)
• Verify enhancement builds upon base control SA-18

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for SA-18(1) 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
SA-18(1) Multiple Phases of System Development Life Cycle not implemented	Medium	System and Services Acquisition
SA-18(1) partially implemented	Low	Incomplete System and Services Acquisition

CWE Categories