Ensure the SELinux mode is enforcing

RendahLevel 2Otomatislinux

Deskripsi

SELinux can run in one of three modes: disabled, permissive, or enforcing: • Enforcing - Is the default, and recommended, mode of operation; in enforcing mode SELinux operates normally, enforcing the loaded security policy on the entire system. • Permissive - The system acts as if SELinux is enforcing the loaded security policy, including labeling objects and emitting access denial entries in the logs, but it does not actually deny any operations. While not recommended for production systems, permissive mode can be helpful for SELinux policy development. • Disabled - Is strongly discouraged; n

Cara pemeriksaan

Metode audit: Perintah shell

shell

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; o=$(bash -c 'grep -Pi -- '"'"'^\h*SELINUX=enforcing\b'"'"' /etc/selinux/config' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- SELINUX=enforcing || { echo step1: missing SELINUX=enforcing; return 1; }; command -v getenforce >/dev/null 2>&1 || { echo "step2: getenforce not installed"; return 1; }; o=$(bash -c getenforce 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- Enforcing || { echo step2: missing Enforcing; return 1; }; }; if alt0; then echo compliant; fi

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

1. Edit /etc/selinux/config and update the SELINUX parameter to SELINUX=enforcing Example: SELINUX=enforcing 2. Update the SELinux running state to enforcing: • If SELinux is currently disabled: Run the following command to create /.autorelabel: # touch /.autorelabel Run the following command to reboot the system: # reboot WARNING: The autorelabel may be a long running process and require significant downtime. This should be planed for before executing the reboot! • If SELinux is not currently disabled: Run the following commands to set SELinux's running mode to Enforcing: # setenforce 1

Properti

Sistem operasi: rocky-8
Tag: cis-convertedlinux
Referensi: CIS Rocky Linux 8 Benchmark v3.0.0 - 1.3.1.5

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target linux --level 2