STIGQter: STIG Summary: Red Hat Enterprise Linux 7 Security Technical Implementation Guide Version: 3 Release: 3 Benchmark Date: 23 Apr 2021:

The Red Hat Enterprise Linux operating system must not allow a non-certificate trusted host SSH logon to the system.

DISA Rule

SV-204435r603261_rule

Vulnerability Number

V-204435

Group Title

SRG-OS-000480-GPOS-00229

Rule Version

RHEL-07-010470

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Configure the operating system to not allow a non-certificate trusted host SSH logon to the system.

Edit the "/etc/ssh/sshd_config" file to uncomment or add the line for "HostbasedAuthentication" keyword and set the value to "no":

HostbasedAuthentication no

The SSH service must be restarted for changes to take effect.

Check Contents

Verify the operating system does not allow a non-certificate trusted host SSH logon to the system.

Check for the value of the "HostbasedAuthentication" keyword with the following command:

# grep -i hostbasedauthentication /etc/ssh/sshd_config
HostbasedAuthentication no

If the "HostbasedAuthentication" keyword is not set to "no", is missing, or is commented out, this is a finding.

Vulnerability Number

V-204435

Documentable

False

Rule Version

RHEL-07-010470

Severity Override Guidance

Verify the operating system does not allow a non-certificate trusted host SSH logon to the system.

Check for the value of the "HostbasedAuthentication" keyword with the following command:

# grep -i hostbasedauthentication /etc/ssh/sshd_config
HostbasedAuthentication no

If the "HostbasedAuthentication" keyword is not set to "no", is missing, or is commented out, this is a finding.

Check Content Reference

M

Target Key

2899

Comments