PSS-07 Confidentiality of Authentication Information
Where passwords authenticate to the service, users set their own or must replace an initial password expiring within fourteen days, length and complexity rules are technically enforced, users are notified of changes or resets, and hashes are stored with strong functions and 32 bit salts.
Source: BSI C5 (121-criteria catalogue), PSS-07. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open BSI C5 (121-criteria catalogue) in the compliance library.
The edition of the catalogue is not stamped here; check the edition your attestation is issued against.
These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.
system holds itEvidence a system already holds
- Configuration showing initial password validity capped at fourteen days · Identity provider / directory
- Technical enforcement settings for password length and complexity · Identity provider / directory
periodic reviewEvidence produced at each review
none for this control
governing documentDocuments that govern the control
- Copy of the message sent to a user on password change or reset · Policy repository / GRC workspace
- Documentation of the hash function and salt length used for server side storage · Policy repository / GRC workspace
First move
Common gaps auditors find
- Initial passwords stay valid indefinitely until the account is first used
- Complexity rules stated in guidance but not enforced by the system
- Hashes stored with an outdated function or without a unique salt per password
- Users not informed when a reset is performed on their account by an administrator
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
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