UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

The Oracle Linux operating system must be configured so that the SSH daemon uses privilege separation.


Overview

Finding ID Version Rule ID IA Controls Severity
V-221863 OL07-00-040460 SV-221863r603260_rule Medium
Description
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.
STIG Date
Oracle Linux 7 Security Technical Implementation Guide 2023-03-06

Details

Check Text ( C-23578r419661_chk )
Verify the SSH daemon performs privilege separation.

Check that the SSH daemon performs privilege separation with the following command:

# grep -i usepriv /etc/ssh/sshd_config

UsePrivilegeSeparation sandbox

If the "UsePrivilegeSeparation" keyword is set to "no", is missing, or the returned line is commented out, this is a finding.
Fix Text (F-23567r419662_fix)
Uncomment the "UsePrivilegeSeparation" keyword in "/etc/ssh/sshd_config" (this file may be named differently or be in a different location if using a version of SSH that is provided by a third-party vendor) and set the value to "sandbox" or "yes":

UsePrivilegeSeparation sandbox

The SSH service must be restarted for changes to take effect.