V-216321

Discussion

Limiting the lifespan of authenticators limits the period of time an unauthorized user has access to the system while using compromised credentials and reduces the period of time available for password-guessing attacks to run against a single password. Solaris 11.4 introduced new password security features that allow for a more granular approach to password duration parameters. The introduction of MAXDAYS, MINDAYS, and WARNDAYS allow the /etc/default/passwd configuration file to enforce a password change every 60 days.

Check Content

The root role is required.

Determine if user passwords are properly configured to be changed every 60 days.

Determine the OS version to be secured.
# uname -v

For Solaris 11, 11.1, 11.2, and 11.3:

# logins -ox |awk -F: '( $1 != "root" && $8 != "LK" && $8 != "NL" && ( $11 > “56" || $11 < “1" )) { print }'

If output is returned and the listed account is accessed via direct logon, this is a finding.

Check that /etc/default/password is configured to enforce password expiration every eight weeks or less.

# grep "^MAXWEEKS=" /etc/default/passwd 

If the command does not report MAXWEEKS=8 or less, this is a finding.

For Solaris 11.4 or newer:

# logins -ox |awk -F: '( $1 != "root" && $8 != "LK" && $8 != "NL" && ($11 > "60"|| $11 < "1")) { print }'

If output is returned and the listed account is accessed via direct logon, this is a finding.

Check that /etc/default/password is configured to enforce password expiration every 60 days or less.
Note: It is an error to set both the WEEKS and the DAYS variant for a given MIN/MAX/WARN variable.

# grep "^MAXDAYS=" /etc/default/passwd 

If the command does not report MAXDAYS=60 or less, this is a finding.

# grep "^MAXWEEKS=" /etc/default/passwd 

If output is returned, this is a finding.