STIGQter 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 be configured so that the SSH daemon does not allow authentication using RSA rhosts authentication.

DISA Rule

SV-204588r603261_rule

Vulnerability Number

V-204588

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-07-040330

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the SSH daemon to not allow authentication using RSA rhosts authentication.

Add the following line in "/etc/ssh/sshd_config", or uncomment the line and set the value to "no":

RhostsRSAAuthentication no

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

Check Contents

Check the version of the operating system with the following command:

# cat /etc/redhat-release

If the release is 7.4 or newer this requirement is Not Applicable.

Verify the SSH daemon does not allow authentication using RSA rhosts authentication.

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

# grep RhostsRSAAuthentication /etc/ssh/sshd_config
RhostsRSAAuthentication no

If the value is returned as "yes", the returned line is commented out, or no output is returned, this is a finding.

Vulnerability Number

V-204588

Documentable

False

Rule Version

RHEL-07-040330

Severity Override Guidance

Check the version of the operating system with the following command:

# cat /etc/redhat-release

If the release is 7.4 or newer this requirement is Not Applicable.

Verify the SSH daemon does not allow authentication using RSA rhosts authentication.

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

# grep RhostsRSAAuthentication /etc/ssh/sshd_config
RhostsRSAAuthentication no

If the value is returned as "yes", the returned line is commented out, or no output is returned, this is a finding.

Check Content Reference

M

Target Key

2899

Comments