STIGQter: STIG Summary: Oracle Linux 7 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The Oracle Linux operating system must be configured so that the SSH daemon does not allow authentication using an empty password.

DISA Rule

SV-221688r603260_rule

Vulnerability Number

V-221688

Group Title

SRG-OS-000106-GPOS-00053

Rule Version

OL07-00-010300

Severity

CAT I

CCI(s)

• CCI-000766 - The information system implements multifactor authentication for network access to non-privileged accounts.

Weight

10

Fix Recommendation

To explicitly disallow remote logon from accounts with empty passwords, add or correct the following line in "/etc/ssh/sshd_config":

PermitEmptyPasswords no

The SSH service must be restarted for changes to take effect. Any accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords.

Check Contents

To determine how the SSH daemon's "PermitEmptyPasswords" option is set, run the following command:

# grep -i PermitEmptyPasswords /etc/ssh/sshd_config
PermitEmptyPasswords no

If no line, a commented line, or a line indicating the value "no" is returned, the required value is set.

If the required value is not set, this is a finding.

Vulnerability Number

V-221688

Documentable

False

Rule Version

OL07-00-010300

Severity Override Guidance

To determine how the SSH daemon's "PermitEmptyPasswords" option is set, run the following command:

# grep -i PermitEmptyPasswords /etc/ssh/sshd_config
PermitEmptyPasswords no

If no line, a commented line, or a line indicating the value "no" is returned, the required value is set.

If the required value is not set, this is a finding.

Check Content Reference

M

Target Key

4089

Comments