AIX must turn off X11 forwarding for the SSH daemon.
An XCCDF Rule
Description
X11 forwarding over SSH allows for the secure remote execution of X11-based applications. This feature can increase the attack surface of an SSH connection and should not be enabled unless needed.
- ID
- SV-215300r991589_rule
- Version
- AIX7-00-002117
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Edit the "/etc/sshd/sshd_config" file to add the following line and save the change:
X11Forwarding no
Restart the SSH daemon:
# stopsrc -s sshd
# startsrc -s sshd