# NIST SP 800-171 Rev. 3 3.5.7 — Password Management - Source: https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-5-7-password-management - Section: [Compliance](https://support.icompaas.com/compliance) › [NIST SP 800-171 Rev. 3 Requirements](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3) › Identification and Authentication — §3.5 - Last updated: 2026-06-05 - Publisher: iCompaas, Inc. (https://www.icompaas.com) **NIST SP 800-171 Rev. 3**·Requirement `3.5.7`·critical·Component: **Identification and Authentication** ## What this control requires > This control mandates maintaining a list of commonly-used, expected, or compromised passwords, verifying that user passwords are not on the list, and ensuring that passwords are transmitted and stored cryptographically. It also requires enforcing composition and complexity rules for passwords, and selecting a new password upon account recovery. This control supports the Password Protection System capability within the Identification and Authentication (3.5) family. > > — NIST SP 800-171 Rev. 3, Requirement 3.5.7 ### In plain English This control mandates maintaining a list of commonly-used, expected, or compromised passwords, verifying that user passwords are not on the list, and ensuring that passwords are transmitted and stored cryptographically. In practice, this means you can prove you account management-level controls on a defined cadence. ## Why it matters DoD contractors and their subcontractors must implement all 100 SP 800-171 requirements to keep CUI handling contracts. Gaps are scored against the SPRS scoring methodology; below a 110-point starting score, each unmet requirement deducts points and a below-threshold score can disqualify a bid. This control is rated **critical** in the source catalogue. Treat gaps here as production incidents in the risk register, not housekeeping. ## What an auditor looks for A C3PAO conducting a CMMC Level 2 assessment uses NIST SP 800-171A objectives. They expect a System Security Plan (SSP), Plan of Action & Milestones (POA&M) for any gaps, and objective evidence (configurations, ticket records, training records) for every requirement. Within **Identification and Authentication**, the assessor will trace your implementation back to the catalogue reference (Requirement 3.5.7) and look for objective evidence on the latest two assessment cycles. ## How to implement 1. Write a short policy stating intent, scope and named owner. 2. Encode it as a platform guardrail — SCP, Azure Policy initiative, Organisation Policy, or repository policy. 3. Wire a monitoring signal that catches drift (CSPM rule, SIEM rule, scheduled query, Workspace alert) and ticket it. 4. Review on a documented cadence and capture the review in the risk register or compliance tracker. ### Operational checklist - **Account.** Document the trigger, the owner and the cadence. - **Access.** Document the trigger, the owner and the cadence. - **Protection.** Document the trigger, the owner and the cadence. - **System.** Document the trigger, the owner and the cadence. - **Password.** Document the trigger, the owner and the cadence. - **Scope:** management, account, authentication, passwords, recovery, protection. ## Evidence to collect - **Identity Scan.** IAM / IdP exports — Entra ID, Okta, IAM Identity Center, Workspace directory — showing accounts, roles, MFA state and last sign-in. Identity analytics (Okta, SailPoint, Access Analyzer) demonstrates least-privilege. Focus: Password Management. ## How it maps to other frameworks Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit. - [**SOC 2 (2017 TSC) CC6.6** — Boundary Protection](https://support.icompaas.com/compliance/soc-2-trust-services-criteria/cc6-6-boundary-protection) - [**NIST SP 800-53 Rev. 5 CP-13** — Alternative Security Mechanisms](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/cp-13-alternative-security-mechanisms) - [**CIS Controls v8 5.6** — Centralize Account Management](https://support.icompaas.com/compliance/cis-controls-v8/5-6-centralize-account-management) - [**ISO/IEC 27001:2022 A.8.23** — Web filtering](https://support.icompaas.com/compliance/iso-27001-2022/a-8-23-web-filtering) - [**BSI C5:2020 IDM-08** — Confidentiality of authentication information](https://support.icompaas.com/compliance/bsi-c5-2020/idm-08-confidentiality-of-authentication-information) ## Related controls in NIST SP 800-171 Rev. 3 - [**Requirement 3.5.5** — Identifier Management](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-5-5-identifier-management) - [**Requirement 3.13.4** — Information in Shared System Resources](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-13-4-information-in-shared-system-resources) - [**Requirement 3.5.12** — Authenticator Management](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-5-12-authenticator-management) - [**Requirement 3.7.5** — Nonlocal Maintenance](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-7-5-nonlocal-maintenance) - [**Requirement 3.5.1** — User Identification and Authentication](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-5-1-user-identification-and-authentication) - [**Requirement 3.5.3** — Multi-Factor Authentication](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-5-3-multi-factor-authentication) ## References - [NIST Computer Security Resource Center — NIST SP 800-171 Rev. 3](https://csrc.nist.gov/pubs/sp/800/171/r3/final) - Catalogue identifier: `Requirement 3.5.7` Topics: identity accessidentity managementaccess reviewprivileged accessbackup recovery ## Related compliance guidance - [NIST SP 800-171 and CMMC: a practical guide to protecting CUI in the cloud](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3): Start with the full NIST SP 800-171 implementation guide — scope, roadmap, evidence and how the assessment runs. - [NIST SP 800-53 Rev. 5: a practical implementation guide for cloud teams](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5): The catalogue 800-171 is tailored from, and the basis of the FedRAMP Moderate baseline your cloud providers must meet for CUI. - [ISO/IEC 27001:2022 compliance: a practical implementation guide](https://support.icompaas.com/compliance/iso-27001-2022): If commercial customers ask for a certificate as well, most 800-171 controls can be evidenced once and mapped to Annex A.