The SUSE operating system SSH daemon must use privilege separation.

From SLES 12 Security Technical Implementation Guide

Associated with: CCI-000366

SV-92165r2_rule The SUSE operating system SSH daemon must use privilege separation.

Vulnerability discussion

SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impact of software vulnerabilities in the unprivileged section.

Check content

Verify the SUSE operating system SSH daemon is configured to use privilege separation. Check that the SUSE operating system SSH daemon performs privilege separation with the following command: # sudo grep -i usepriv /etc/ssh/sshd_config UsePrivilegeSeparation yes If the "UsePrivilegeSeparation" keyword is set to "no", is missing, or the returned line is commented out, this is a finding.

Fix text

Configure the SUSE operating system SSH daemon is configured to use privilege separation. Uncomment the "UsePrivilegeSeparation" keyword in "/etc/ssh/sshd_config" and set the value to "yes": UsePrivilegeSeparation yes

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