TMA-MARIADB-3.7

Ensure SSL Key Files Have Appropriate Permissions

ÉlevéeNiveau 1Automatiséemariadb

Description

When configured to use SSL/TLS, MariaDB relies on Secure Sockets Layer (SSL) key files, which are stored on the host's filesystem. These SSL key files are subject to the host's permissions and ownership structure. Every file named by an ssl_ca/ssl_cert/ssl_key/ssl_crl variable must be -r-------- mysql:mysql (directories in ssl_capath/ssl_crlpath are skipped). Runs mariadb -NBe with the client defaults: as root on the server the unix_socket plugin usually authenticates; otherwise put an administrative account in ~/.my.cnf (mode 0600), not MYSQL_PWD (see 1.4/1.6).

Méthode de vérification

Méthode d'audit: Commande shell

shell

[ "$(id -u)" -eq 0 ] || exit 1; d=$(mariadb -NBe "SELECT @@global.datadir" 2>/dev/null) || exit 1; l=$(mariadb -NBe "SELECT VARIABLE_VALUE FROM information_schema.GLOBAL_VARIABLES WHERE LOWER(VARIABLE_NAME) REGEXP '^.*ssl_(ca|capath|cert|crl|crlpath|key)\$' AND VARIABLE_VALUE <> ''" 2>/dev/null) || exit 1; n=0; for f in $l; do case "$f" in /*) ;; *) f="$d/${f#./}" ;; esac; [ -f "$f" ] || continue; [ "$(stat -c '%a %U %G' "$f")" = "400 mysql mysql" ] || n=$((n+1)); done; [ "$n" -eq 0 ] && echo compliant || echo "$n noncompliant files"

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

chown mysql:mysql <ssl_file> && chmod 400 <ssl_file> for every ssl_ca/ssl_cert/ssl_key/ssl_crl file in use.

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: mariadbdatabasefilesystempermissionstls
Référence: CIS MariaDB 10.11 Benchmark v1.0.0 - 3.7 Ensure SSL Key Files Have Appropriate Permissions

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target mariadb