Ensure dccp kernel module is not available

Como é verificado

Método de auditoria: Comando shell

m=dccp; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/dccp*" 2>/dev/null | head -n1); if [ -z "$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

Saída esperada

compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

Run the following to unload and disable the dccp kernel module. This can also be done by running the script included below. Run the following commands to unload the dccp kernel module: # modprobe -r dccp 2>/dev/null # rmmod dccp 2>/dev/null Perform the following to disable the dccp kernel module: Create a file ending in .conf with install dccp /bin/false in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "install dccp /bin/false" >> dccp.conf Create a file ending in .conf with blacklist dccp in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "blacklist dccp" >> dccp.conf Optional remediation script: This script will perform the above remediation as required by the system …

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

tmaegis scan --target linux --level 2