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The OL 8 shadow password suite must be configured to use a sufficient number of hashing rounds.


Finding ID Version Rule ID IA Controls Severity
V-248535 OL08-00-010130 SV-248535r880546_rule Medium
The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing rounds to ensure the required level of entropy. Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised.
Oracle Linux 8 Security Technical Implementation Guide 2022-12-06


Check Text ( C-51969r880545_chk )
Check that a minimum number of hash rounds is configured by running the following command:

$ sudo grep -E "^SHA_CRYPT_" /etc/login.defs

If only one of "SHA_CRYPT_MIN_ROUNDS" or "SHA_CRYPT_MAX_ROUNDS" is set, and this value is below "5000", this is a finding.

If both "SHA_CRYPT_MIN_ROUNDS" and "SHA_CRYPT_MAX_ROUNDS" are set, and the value for either is below "5000", this is a finding.
Fix Text (F-51923r818600_fix)
Configure OL 8 to encrypt all stored passwords with a strong cryptographic hash.

Edit/modify the following line in the "/etc/login.defs" file and set "SHA_CRYPT_MIN_ROUNDS" to a value no lower than "5000":