FedRAMP Controls / IA
IA-5(1) Password-based Authentication
Family IA
Baselines moderate
Mapped KSIs 1
Control statement
For password-based authentication:
(a) Maintain a list of commonly-used, expected, or compromised passwords and update the list {{ insert: param, ia-05.01_odp.01 }} and when organizational passwords are suspected to have been compromised directly or indirectly;
(b) Verify, when users create or update passwords, that the passwords are not found on the list of commonly-used, expected, or compromised passwords in IA-5(1)(a);
(c) Transmit passwords only over cryptographically-protected channels;
(d) Store passwords using an approved salted key derivation function, preferably using a keyed hash;
(e) Require immediate selection of a new password upon account recovery;
(f) Allow user selection of long passwords and passphrases, including spaces and all printable characters;
(g) Employ automated tools to assist the user in selecting strong password authenticators; and
(h) Enforce the following composition and complexity rules: {{ insert: param, ia-05.01_odp.02 }}.
Requirement: Password policies must be compliant with NIST SP 800-63B for all memorized, lookup, out-of-band, or One-Time-Passwords (OTP). Password policies shall not enforce special character or minimum password rotation requirements for memorized secrets of users.
(h) Requirement: For cases where technology doesn't allow multi-factor authentication, these rules should be enforced: must have a minimum length of 14 characters and must support all printable ASCII characters.
For emergency use accounts, these rules should be enforced: must have a minimum length of 14 characters, must support all printable ASCII characters, and passwords must be changed if used.
Guidance: Note that (c) and (d) require the use of cryptography which must be compliant with Federal requirements and utilize FIPS validated or NSA approved cryptography (see SC-13). Parameter placeholders {{ insert: param, … }} reference FedRAMP-set values in the resolved profile. Full parameter map is
preserved in the catalog database.
Covered by these Key Security Indicators
| KSI | Title | Category |
|---|---|---|
| KSI-IAM-02 | Passwordless Authentication Use secure passwordless methods for user authentication and authorization when feasible, otherwise enforce strong passwords with MFA. | Identity and Access Management |