STIGQter: STIG Summary: Solaris 11 SPARC Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The sshd server must bind the X11 forwarding server to the loopback address.

DISA Rule

SV-233300r603280_rule

Vulnerability Number

V-233300

Group Title

SRG-OS-000480

Rule Version

SOL-11.1-040331

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

The root role is required.

Modify the sshd_config file.

# vi /etc/ssh/sshd_config

Locate the line containing:

X11UseLocalhost

Change it to:

X11UseLocalhost yes

Restart the SSH service.

# svcadm restart svc:/network/ssh

Check Contents

Determine if the X11 forwarding server is bound to the loopback address.

# grep "^X11UseLocalhost" /etc/ssh/sshd_config

If the output of this command is not:

X11UseLocalhost yes

this is a finding.

Vulnerability Number

V-233300

Documentable

False

Rule Version

SOL-11.1-040331

Severity Override Guidance

Determine if the X11 forwarding server is bound to the loopback address.

# grep "^X11UseLocalhost" /etc/ssh/sshd_config

If the output of this command is not:

X11UseLocalhost yes

this is a finding.

Check Content Reference

M

Target Key

4022

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