TMA-GITHUB-1.3.12

Ensure Git access is limited based on IP addresses

中レベル 2自動github

説明

Limit Git access based on IP addresses by having a allowlist of IP addresses from which connection is possible. Allowing access to Git repositories (source code) only from specific IP addresses adds yet another layer of restriction and reduces the risk of unauthorized connection to the organization's assets. GraphQL ipAllowListEnabledSetting must be ENABLED with at least one allow-list entry (GitHub Enterprise Cloud). Uses the GitHub REST/GraphQL API through gh api (read-only). The repository comes from GH_REPO or the current git checkout (gh's {owner}/{repo} resolution, GH_HOST for GitHub Enterprise Server); the organization comes from GH_ORG (default: the repository owner). Fails when gh is missing or unauthenticated (gh auth login or GH_TOKEN); organization settings and branch protection need an owner/admin token.

チェック方法

監査方法: シェルコマンド

shell

command -v gh >/dev/null 2>&1 || exit 1
gh auth status >/dev/null 2>&1 || exit 1
O=${GH_ORG:-$(gh api 'repos/{owner}/{repo}' --jq .owner.login 2>/dev/null)}
[ -n "$O" ] || exit 1
v=$(gh api graphql -f query='query($o: String!) { organization(login: $o) { ipAllowListEnabledSetting ipAllowListEntries(first: 1) { totalCount } } }' -f o="$O" --jq '.data.organization.ipAllowListEnabledSetting == "ENABLED" and .data.organization.ipAllowListEntries.totalCount > 0' 2>/dev/null) || exit 1
[ "$v" = true ] && echo compliant

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

Organization Settings > Authentication security > IP allow list: add the allowed CIDRs and select Enable IP allow list.

プロパティ

オペレーティングシステム: すべて
タグ: githubsource-code
参照: CIS GitHub Benchmark v1.2.0 - 1.3.12 Ensure Git access is limited based on IP addresses

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 github --level 2