STIGQter: STIG Summary: IBM AIX 7.x Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

The AIX SSH daemon must not allow RhostsRSAAuthentication.

DISA Rule

SV-215305r508663_rule

Vulnerability Number

V-215305

Group Title

SRG-OS-000480-GPOS-00229

Rule Version

AIX7-00-002123

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Edit the "/etc/ssh/sshd_config file", add the following line, and save the change:
RhostsRSAAuthentication no

Restart the SSH daemon:
# stopsrc -s sshd
# startsrc -s sshd

Check Contents

Check the SSH daemon configuration for the "RhostsRSAAuthentication" setting by running:
# grep -i RhostsRSAAuthentication /etc/ssh/sshd_config | grep -v '^#'

The above command should yield the following output:
RhostsRSAAuthentication no

If the setting is present and set to "yes", this is a finding.

Vulnerability Number

V-215305

Documentable

False

Rule Version

AIX7-00-002123

Severity Override Guidance

Check the SSH daemon configuration for the "RhostsRSAAuthentication" setting by running:
# grep -i RhostsRSAAuthentication /etc/ssh/sshd_config | grep -v '^#'

The above command should yield the following output:
RhostsRSAAuthentication no

If the setting is present and set to "yes", this is a finding.

Check Content Reference

M

Target Key

4012

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