TMAegis
More rules for linux

TMA-ROCKY8-2.1.14

Ensure samba file server services are not in use

MediumLevel 1Automatedlinux

Description

The Samba daemon allows system administrators to configure their Linux systems to share file systems and directories with Windows desktops. Samba will advertise the file systems and directories via the Server Message Block (SMB) protocol. Windows desktop users will be able to mount these directories and file systems as letter drives on their systems.

How it is checked

Audit method: Shell command

shell
alt0() { command -v rpm >/dev/null 2>&1 || { echo "step1: rpm not installed"; return 1; }; o=$(bash -c 'rpm -q samba' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'package samba is not installed' || { echo step1: missing 'package samba is not installed'; return 1; }; }; alt1() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled smb.service 2>/dev/null | grep '"'"'enabled'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; command -v grep >/dev/null 2>&1 || { echo "step2: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-active smb.service 2>/dev/null | grep '"'"'^active'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step2: $o" | head -c 300; return 1; }; }; if alt0 || alt1; then echo compliant; fi
Expected output
compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following command to stop smb.service and remove samba package: # systemctl stop smb.service # dnf remove samba - OR - - IF - the samba package is required as a dependency: Run the following commands to stop and mask the smb.service: # systemctl stop smb.service # systemctl mask smb.service

Properties

Operating systems
rocky-8
Tags
cis-convertedlinux
Reference
CIS Rocky Linux 8 Benchmark v3.0.0 - 2.1.14

Check this host

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

shell
tmaegis scan --target linux