ESXI-06-000023 - The SSH daemon must be configured to not allow X11 forwarding.

Information

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.

Solution

To set the X11Forwarding setting, add or correct the following line in '/etc/ssh/sshd_config':

X11Forwarding no

See Also

http://iasecontent.disa.mil/stigs/zip/U_VMware_vSphere_6-0_ESXi_V1R5_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Group-ID|V-63215, Rule-ID|SV-77705r1_rule, STIG-ID|ESXI-06-000023, Vuln-ID|V-63215

Plugin: Unix

Control ID: cb80655b3f378662d83f2d5488377b07fd2d696da02fd6a4f46f87cdd1ba7f88