Details

SSH environment options potentially allow users to bypass access restriction in some configurations.

Solution

To ensure users are not able to present environment options to the SSH daemon, add or correct the following line in ‘/etc/ssh/sshd_config’:

PermitUserEnvironment no

Supportive Information

The following resource is also helpful.

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

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-6b.
• CAT|II
• CCI|CCI-000366
• CSCv6|3.1
• Group-ID|V-63201
• Rule-ID|SV-77691r1_rule
• STIG-ID|ESXI-06-000016
• Vuln-ID|V-63201

Source

• Tenable.com/audits