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More rules for linux

Linux distributions

TMA-ROCKY9-1.8.5

Ensure GDM autorun-never is configured

MediumLevel 1Automatedlinux

Description

The autorun-never setting allows the GNOME Desktop Display Manager to disable autorun through GDM. By using the lockdown mode in dconf, you can prevent users from changing specific settings.

How it is checked

Audit method: Shell command

shell
alt0() { command -v gsettings >/dev/null 2>&1 || { echo "step1: gsettings not installed"; return 1; }; o=$(bash -c 'gsettings writable org.gnome.desktop.media-handling autorun-never' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- false || { echo step1: missing false; return 1; }; command -v gsettings >/dev/null 2>&1 || { echo "step2: gsettings not installed"; return 1; }; o=$(bash -c 'gsettings get org.gnome.desktop.media-handling autorun-never' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- true || { echo step2: missing true; return 1; }; }; if alt0; then echo compliant; fi
Expected output
compliant

How it is fixed

Fix method: Guidance or infrastructure patch

1. Create or edit the file /etc/dconf/profile/user and add the following lines if they do not exist: user-db:user system-db:local Example: #!/usr/bin/env bash { l_dir="/etc/dconf/profile/" [ ! -d "$l_dir" ] && mkdir /etc/dconf/profile/ ! grep -Psq '^\h*user-db:user\b' "$l_dir/user" && \ printf '%s\n' "" "user-db:user" >> "$l_dir/user" ! grep -Psq '^\h*system-db:local\b' "$l_dir/user" && \ sed -ri '/^\s*user-db:user/a system-db:local' "$l_dir/user" } 2. Run the following command to create the /etc/dconf/db/local.d/ and /etc/dconf/db/local.d/locks/ directories if either does not exist: # [ ! -d "/etc/dconf/db/local.d/locks/" ] && mkdir -p /etc/dconf/db/local.d/locks/ 3. Create or edit a file i…

Properties

Operating systems
rocky-9
Tags
cis-convertedlinux
Reference
CIS Rocky Linux 9 Benchmark v3.0.0 - 1.8.5

Check this host

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

shell
tmaegis scan --target linux