Ensure any change to code receives approval of two strongly authenticated users

HighLevel 1Automatedgithub

Description

Ensure that every code change is reviewed and approved by two authorized contributors who are both strongly authenticated - using Multi-Factor Authentication (MFA), from the team relevant to the code change. To prevent malicious or unauthorized code changes, the first layer of protection is the process of code review. This process involves engineer teammates reviewing each other's code for errors, optimizations, and general ... Checks the default branch: a pull request with at least 2 approving reviews is required. Satisfied by classic branch protection or an active ruleset (rules/branches). 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.

How it is checked

Audit method: Shell command

shell

command -v gh >/dev/null 2>&1 || exit 1
gh auth status >/dev/null 2>&1 || exit 1
info=$(gh api 'repos/{owner}/{repo}' --jq '.full_name + " " + .default_branch' 2>/dev/null) || exit 1
R=${info% *}; B=${info#* }
[ -n "$R" ] && [ -n "$B" ] || exit 1
p=$(gh api "repos/$R/branches/$B/protection" --jq '(.required_pull_request_reviews.required_approving_review_count // 0) >= 2' 2>/dev/null) || p=false
s=$(gh api "repos/$R/rules/branches/$B" --jq 'any(.[]; .type == "pull_request" and (.parameters.required_approving_review_count // 0) >= 2)' 2>/dev/null) || s=false
[ "$p" = true ] || [ "$s" = true ] && echo compliant

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Settings > Branches (or Rules > Rulesets) for the default branch: enable Require a pull request before merging with Required approvals = 2 (gh api -X PUT repos/<owner>/<repo>/branches/<branch>/protection ... required_approving_review_count=2), and require MFA for the organization.

Properties

Operating systems: Any
Tags: githubsource-code
Reference: CIS GitHub Benchmark v1.2.0 - 1.1.3 Ensure any change to code receives approval of two strongly authenticated users

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target github