Ensure Only the Necessary SELinux Booleans are Enabled

低等級 2自動化bind

說明

SELinux booleans allow or disallow specific behaviors. There are two boolean variables specific to the ISC BIND DNS server: ; named_tcp_bind_http_port - Allow named to tcp bind http port ; named_write_master_zones - Allow named to write master zones The named_tcp_bind_http_port would allow enabling the BIND statistics http channel which is not recommended. The audit runs getsebool named_tcp_bind_http_port and requires off (named_write_master_zones is not audited).

檢查方式

稽核方法: Shell 指令

shell

v=$(getsebool named_tcp_bind_http_port 2>/dev/null) || exit 1
case "$v" in *'--> off') echo compliant ;; *) echo "$v" ;; esac

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

Perform the following to implement the recommended state: Disable the SELinux boolean using the setsebool command as shown below with the -P option to make the change persistent. # setsebool -P named_tcp_bind_http_port off

屬性

作業系統: 不限
標籤: binddnsselinux
參考資料: CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 10.4 Ensure Only the Necessary SELinux Booleans are Enabled

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。

shell

tmaegis scan --target bind --level 2