Linux distributions
TMA-ALINUX3-1.1.1.1
Ensure cramfs kernel module is not available
Açıklama
The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image.
Nasıl denetlenir
Denetim yöntemi: Kabuk komutu
m=cramfs; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/cramfs*" 2>/dev/null | head -n1); if [ -z "$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- Beklenen çıktı
compliant
Nasıl düzeltilir
Düzeltme yöntemi: Kılavuz veya altyapı yaması
Unload and disable the cramfs kernel module. 1. Run the following commands to unload the cramfs kernel module: # modprobe -r cramfs 2>/dev/null # rmmod cramfs 2>/dev/null 2. Perform the following to disable the cramfs kernel module: Create a file ending in .conf with install cramfs /bin/false in the /etc/modprobe.d/ directory. Example: # printf '%s\n' "" "install cramfs /bin/false" >> /etc/modprobe.d/60- cramfs.conf Create a file ending in .conf with blacklist cramfs in the /etc/modprobe.d/ directory. Example: # printf '%s\n' "" "blacklist cramfs" >> /etc/modprobe.d/60-cramfs.conf
Özellikler
- İşletim sistemleri
- alinux-3
- Etiketler
- cis-convertedkernellinuxmodules
- Referans
- CIS Alibaba Cloud Linux 3 Benchmark v2.0.0 - 1.1.1.1
Bu ana makineyi denetle
Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.
tmaegis scan --target linux