Ensure permissions on /etc/ssh/sshd_config are configured

MediumLevel 1Automatedlinux

Description

The /etc/ssh/sshd_config file contains configuration specifications for sshd. The command below sets the owner and group of the file to root.

How it is checked

Audit method: Shell command

shell

alt0() { command -v stat >/dev/null 2>&1 || { echo "step1: stat not installed"; return 1; }; o=$(bash -c 'stat /etc/ssh/sshd_config' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Access: (0600/-rw-------) Uid: ( 0/ root) Gid: ( 0/ root)' || { echo step1: missing 'Access: (0600/-rw-------) Uid: ( 0/ root) Gid: ( 0/ root)'; return 1; }; }; if alt0; then echo compliant; fi

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following commands to set ownership and permissions on /etc/ssh/sshd_config: # chown root:root /etc/ssh/sshd_config # chmod 600 /etc/ssh/sshd_config

Properties

Operating systems: alinux-2
Tags: cis-convertedlinux
Reference: CIS Aliyun Linux 2 Benchmark v1.0.0 ARCHIVE - 5.2.1

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target linux