Check: RHEL-08-010120
RHEL 8 STIG:
RHEL-08-010120
(in versions v2 r1 through v1 r1)
Title
RHEL 8 must employ FIPS 140-2 approved cryptographic hashing algorithms for all stored passwords. (Cat II impact)
Discussion
The system must use a strong hashing algorithm to store the password. 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.
Check Content
Confirm that the interactive user account passwords are using a strong password hash with the following command: $ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/ Password hashes "!" or "*" indicate inactive accounts not available for logon and are not evaluated. If any interactive user password hash does not begin with "$6$", this is a finding.
Fix Text
Lock all interactive user accounts not using SHA-512 hashing until the passwords can be regenerated with SHA-512.
Additional Identifiers
Rule ID: SV-230232r1017051_rule
Vulnerability ID: V-230232
Group Title: SRG-OS-000073-GPOS-00041
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000196 |
The information system, for password-based authentication, stores only cryptographically-protected passwords. |
| CCI-004062 |
For password-based authentication, store passwords using an approved salted key derivation function, preferably using a keyed hash. |
Controls
| Number | Title |
|---|---|
| IA-5(1) |
Password-based Authentication |