Linux distributions
TMA-UBUNTU2004-3.2.3
Ensure rds kernel module is not available
説明
The Reliable Datagram Sockets (RDS) protocol is a transport layer protocol designed to provide low-latency, high-bandwidth communications between cluster nodes. It was developed by the Oracle Corporation.
チェック方法
監査方法: シェルコマンド
m=rds; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/rds*" 2>/dev/null | head -n1); if [ -z "$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- 期待される出力
compliant
修正方法
修正方法: ガイダンスまたは IaC パッチ
Run the following to unload and disable the rds kernel module. This can also be done by running the script included below. Run the following commands to unload the rds kernel module: # modprobe -r rds 2>/dev/null # rmmod rds 2>/dev/null Perform the following to disable the rds kernel module: Create a file ending in .conf with install rds /bin/false in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "install rds /bin/false" >> rds.conf Create a file ending in .conf with blacklist rds in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "blacklist rds" >> rds.conf Optional remediation script: This script will perform the above remediation as required by the system #!/usr/bin/…
プロパティ
- オペレーティングシステム
- ubuntu-20.04
- タグ
- cis-convertedkernellinuxmodules
- 参照
- CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0 - 3.2.3
このホストをチェック
監査が許可されているマシンで実行してください。スキャンは読み取り専用です。
tmaegis scan --target linux --level 2