Ensure directed_broadcast is disabled

中级别 1自动化aix

说明

The directed_broadcast parameter determines whether or not the system allows a directed broadcast to a network gateway. The directed_broadcast parameter will be set to 0, to prevent directed broadcasts being sent network gateways. This would prevent a redirected packet from reaching a remote network. Audit: `no -o directed_broadcast` must report 0.

检查方式

审计方法: Shell 命令

shell

command -v no >/dev/null 2>&1 || exit 1; out=$(no -o directed_broadcast 2>/dev/null) || exit 1; printf '%s\n' "$out" | sed 's/[[:blank:]]*=[[:blank:]]*/=/'

预期输出: directed_broadcast=0

修复方式

修复方法: 操作指南或基础设施补丁

no -p -o directed_broadcast=0 (sets the running value and makes it persistent in /etc/tunables/nextboot)

属性

操作系统: 任意
标签: aixnetwork
参考: CIS IBM AIX 7 Benchmark v1.2.0 - 4.5.4 Ensure directed_broadcast is disabled

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target aix