STIGQter STIGQter: STIG Summary: IBM AIX 7.x Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 25 Apr 2019: AIX must setup SSH daemon to disable revoked public keys.

DISA Rule

SV-101647r1_rule

Vulnerability Number

V-91549

Group Title

SRG-OS-000384-GPOS-00167

Rule Version

AIX7-00-002110

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Obtain the file that contains all the public keys that need to be revoked from ISSO/SA and save the file in /etc/ssh/ directory.

Edit the "/etc/ssh/sshd_config" file to allow "RevokedKeys" to point to the revoked key file obtained above.

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

Check Contents

If public keys are not used for SSH authentication, this is Not Applicable.

Run the following command:

# grep "^RevokedKeys" /etc/ssh/sshd_config
RevokedKeys /etc/ssh/RevokedKeys.txt

If the command does not find the "RevokedKeys" setting, or the value for "RevokedKeys" is set to "none", this is a finding.

Vulnerability Number

V-91549

Documentable

False

Rule Version

AIX7-00-002110

Severity Override Guidance

If public keys are not used for SSH authentication, this is Not Applicable.

Run the following command:

# grep "^RevokedKeys" /etc/ssh/sshd_config
RevokedKeys /etc/ssh/RevokedKeys.txt

If the command does not find the "RevokedKeys" setting, or the value for "RevokedKeys" is set to "none", this is a finding.

Check Content Reference

M

Target Key

3491

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