SV-281264r1184764_rule
V-281264
SRG-OS-000106-GPOS-00053
RHEL-10-700610
CAT II
10
Configure RHEL 10 to prevent SSH users from logging on with blank passwords.
In "/etc/ssh/sshd_config.d", create a drop file that will lexicographically precede 50-redhat.conf and add the following line:
PermitEmptyPasswords no
Restart the SSH daemon with the following command for the settings to take effect:
$ sudo systemctl restart sshd.service
Verify RHEL 10 remote access using SSH prevents logging on with a blank password with the following command:
$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*permitemptypasswords'
/etc/ssh/sshd_config.d/10-stig.conf:PermitEmptyPasswords no
Verify the runtime setting with the following command:
$ sudo sshd -T | grep -i permitemptypasswords
permitemptypasswords no
If the "PermitEmptyPasswords" keyword is not set to "no" in a drop-in that lexicographically precedes 50-redhat.conf, or if no output is returned, this is a finding.
V-281264
False
RHEL-10-700610
Verify RHEL 10 remote access using SSH prevents logging on with a blank password with the following command:
$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*permitemptypasswords'
/etc/ssh/sshd_config.d/10-stig.conf:PermitEmptyPasswords no
Verify the runtime setting with the following command:
$ sudo sshd -T | grep -i permitemptypasswords
permitemptypasswords no
If the "PermitEmptyPasswords" keyword is not set to "no" in a drop-in that lexicographically precedes 50-redhat.conf, or if no output is returned, this is a finding.
M
5733