Linux distributions
TMA-ROCKY10-1.1.1.8
Ensure udf kernel module is not available
Description
The udf filesystem type is the universal disk format used to implement ISO/IEC 13346 and ECMA-167 specifications. This is an open vendor filesystem type for data storage on a broad range of media. This filesystem type is necessary to support writing DVDs and newer optical disc formats.
Méthode de vérification
Méthode d'audit: Commande shell
m=udf; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/udf*" 2>/dev/null | head -n1); if [ -z "$found" ]; then echo compliant; exit 0; fi; lsmod | awk '{print $1}' | grep -Fxq -- "${m//-/_}" && { echo "$m is loaded"; exit 0; }; cfg=$(modprobe --showconfig 2>/dev/null); printf '%s\n' "$cfg" | grep -Pq -- "^\h*blacklist\h+${m//-/_}\b" || { echo "$m is not blacklisted"; exit 0; }; printf '%s\n' "$cfg" | grep -Pq -- "^\h*install\h+${m//-/_}\h+(/usr)?/bin/(true|false)\b" || { echo "$m install is not disabled"; exit 0; }; echo compliant- Sortie attendue
compliant
Méthode de correction
Méthode de correction: Recommandation ou correctif d'infrastructure
Unload and disable the udf kernel module. 1. Run the following commands to unload the udf kernel module: # modprobe -r udf 2>/dev/null # rmmod udf 2>/dev/null 2. Perform the following to disable the udf kernel module: Create a file ending in .conf with install udf /bin/false in the /etc/modprobe.d/ directory Example: # printf '%s\n' "" "install udf /bin/false" >> /etc/modprobe.d/60-udf.conf Create a file ending in .conf with blacklist udf in the /etc/modprobe.d/ directory Example: # printf '%s\n' "" "blacklist udf" >> /etc/modprobe.d/60-udf.conf
Propriétés
- Systèmes d'exploitation
- rocky-10
- Étiquettes
- cis-convertedkernellinuxmodules
- Référence
- CIS Rocky Linux 10 Benchmark v1.0.0 - 1.1.1.8
Vérifier cet hôte
Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.
tmaegis scan --target linux --level 2