Linux distributions
TMA-ROCKY9-1.1.1.5
Ensure jffs2 kernel module is not available
說明
The jffs2 (journaling flash filesystem 2) filesystem type is a log-structured filesystem used in flash memory devices.
檢查方式
稽核方法: Shell 指令
m=jffs2; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/jffs2*" 2>/dev/null | head -n1); if [ -z "$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- 預期輸出
compliant
修補方式
修補方法: 操作指南或基礎設施修補檔
Unload and disable the jffs2 kernel module. 1. Run the following commands to unload the jffs2 kernel module: # modprobe -r jffs2 2>/dev/null # rmmod jffs2 2>/dev/null 2. Perform the following to disable the jffs2 kernel module: Create a file ending in .conf with install jffs2 /bin/false in the /etc/modprobe.d/ directory. Example: # printf '%s\n' "" "install jffs2 /bin/false" >> /etc/modprobe.d/60- jffs2.conf Create a file ending in .conf with blacklist jffs2 in the /etc/modprobe.d/ directory. Example: # printf '%s\n' "" "blacklist jffs2" >> /etc/modprobe.d/60-jffs2.conf
屬性
- 作業系統
- rocky-9
- 標籤
- cis-convertedkernellinuxmodules
- 參考資料
- CIS Rocky Linux 9 Benchmark v3.0.0 - 1.1.1.5
檢查此主機
請在您有權稽核的機器上執行此指令。掃描為唯讀操作。
tmaegis scan --target linux