Ensure Flow Logs are enabled for every VPC

보통레벨 2자동ibmcloud

설명

Flow logs capture network traffic metadata for monitoring and investigations. In the targeted region every VPC must be referenced by at least one flow log collector (VPC- or subnet/instance-level). Read-only ibmcloud CLI calls using the current CLI session and targeted region (ibmcloud login, or IBMCLOUD_API_KEY); JSON output is parsed with grep/sed/awk. A missing CLI, plugin or session fails the check.

점검 방법

감사 방식: 셸 명령

shell

vpcs=$(ibmcloud is vpcs --output json 2>/dev/null) || exit 1
fl=$(ibmcloud is flow-logs --output json 2>/dev/null) || exit 1
bad=0
for v in $(printf '%s\n' "$vpcs" | awk '{ o = gsub(/\{/, "{"); c = gsub(/\}/, "}") } d == 1 && /"id"[[:space:]]*:/ { s = $0; sub(/^[^:]*:[[:space:]]*"/, "", s); sub(/".*/, "", s); print s } { d += o - c }'); do
  printf '%s\n' "$fl" | grep -qF "\"$v\"" || { echo "no flow log: $v"; bad=1; }
done
[ "$bad" -eq 0 ] && echo compliant

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

ibmcloud is flow-log-create --bucket <cos-bucket> --target <vpc-id> --name <name> --active true for each listed VPC (requires a COS service-to-service authorisation).

속성

운영 체제: 모두
태그: ibmcloudlogging
참고 자료: CIS IBM Cloud Foundations Benchmark v2.0.0 - Logging and Monitoring - VPC flow logs enabled (verify section number for your release)

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shell

tmaegis scan --target ibmcloud --level 2