| name | AC-4(31)_failed-content-transfer-prevention |
| description | When transferring information between different security domains, prevent the transfer of failed content to the receiving domain. |
| category | authorization |
| version | 5.2.0 |
| author | cyberstrike-official |
| tags | ["nist","sp800-53","rev5","ac-4-31","ac","enhancement"] |
| tech_stack | ["aws","azure","gcp","linux","windows"] |
| cwe_ids | ["CWE-284"] |
| chains_with | [] |
| prerequisites | ["AC-4"] |
| severity_boost | {} |
AC-4(31) Failed Content Transfer Prevention
Enhancement of: AC-4
High-Level Description
Family: Access Control (AC)
Framework: NIST SP 800-53 Rev 5
Content that failed filtering checks can corrupt the system if transferred to the receiving domain.
What to Check
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for AC-4(31) 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 |
|---|
| cloud-audit-mcp | Check IAM policies and access controls | cloud_audit_iam_policies |
| hackbrowser-mcp | Test web application access controls | browser_auth_test |
Remediation Guide
Control Statement
When transferring information between different security domains, prevent the transfer of failed content to the receiving domain.
Implementation Guidance
Content that failed filtering checks can corrupt the system if transferred to the receiving domain.
Risk Assessment
| Finding | Severity | Impact |
|---|
| AC-4(31) Failed Content Transfer Prevention not implemented |
