Ensure IAM administrators cannot update tenancy Administrators group

高レベル 1自動oci

説明

Tenancy administrators can create more users, groups, and policies to provide other service administrators access to OCI resources. For example, an IAM administrator will need to have access to manage resources like compartments, users, groups, dynamic-groups, policies, identity-providers, tenancy tag-namespaces ... These policy statements ensure that no other group can manage tenancy administrator users or the membership to the 'Administrators' group thereby gain or remove tenancy administrator access. Flags root-compartment statements that grant use/manage users or groups in tenancy without a target.group.name != 'Administrators' condition (statements for the Administrators group itself are ignored). Read-only OCI CLI calls; credentials and home region come from the CLI's normal configuration (~/.oci/config, OCI_CLI_PROFILE, OCI_CLI_AUTH). The tenancy OCID is taken from OCI_TENANCY or the first tenancy= line of the config file. A missing CLI or credential fails the check.

チェック方法

監査方法: シェルコマンド

shell

t=${OCI_TENANCY:-$(sed -n 's/^[[:space:]]*tenancy[[:space:]]*=[[:space:]]*//p' "${OCI_CLI_CONFIG_FILE:-$HOME/.oci/config}" 2>/dev/null | head -n 1 | tr -d '\r[:space:]')}
[ -n "$t" ] || exit 1
bad=0
out=$(oci iam policy list --compartment-id "$t" --all --query 'data[].statements[]' --raw-output 2>/dev/null) || exit 1
b=$(printf '%s\n' "$out" | grep -Ei "to[[:space:]]+(use|manage)[[:space:]]+(users|groups)[[:space:]]+in[[:space:]]+tenancy" | grep -Eiv "allow[[:space:]]+group[[:space:]]+('?default'?/)?'?administrators'?[[:space:]]+to" | grep -Eiv "target\.group\.name[[:space:]]*!=[[:space:]]*'?administrators'?" || true)
[ -z "$b" ] && echo compliant || printf '%s\n' "$b"

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

Add a condition to each listed statement, e.g. Allow group IAMAdmins to use users in tenancy where target.group.name != 'Administrators' (and likewise for groups).

プロパティ

オペレーティングシステム: すべて
タグ: ociiam
参照: CIS Oracle Cloud Infrastructure Foundations Benchmark v3.1.1 - 1.3 Ensure IAM administrators cannot update tenancy Administrators group

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。

shell

tmaegis scan --target oci