Reference: CMMC v2.13
Family: IA
Level Introduced: 2
Title: Cryptographically-Protected Passwords
Practice:
Store and transmit only cryptographically protected passwords.
Further Discussion:
All passwords must be cryptographically protected using a one-way function for storage and transmission. This type of protection changes passwords into another form, or a hashed password. A one-way transformation makes it theoretically impossible to turn the hashed password back into the original password, but inadequate complexity (IA.L2-3.5.7) may still facilitate offline cracking of hashes.
Example
You are responsible for managing passwords for your organization. You protect all passwords with a one-way transformation, or hashing, before storing them. Passwords are never transmitted across a network unencrypted [a,b].
Potential Assessment Considerations
• Are passwords prevented from being stored in reversible encryption form in any company systems [a]?
• Are passwords stored as one-way hashes constructed from passwords [a]?
Implementation Strategies
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800-171 Requirements v2 (1)
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