42Crunch for Blue/green deployment safety scan

What middleBrick covers

Black-box API scanning with no agents or code access
Under-one-minute scan time with read-only methods
Domain ownership verification via DNS TXT or HTTP file
Authentication support for Bearer, API key, Basic, and Cookie
OWASP API Top 10 (2023) aligned findings with compliance mapping
CI/CD integration via GitHub Action and configurable score gates

Blue/green deployment and API security posture

Blue/green deployments reduce release risk by maintaining two parallel environments and shifting traffic between them. For API security, the model favors repeatable, low-friction validation that can run on each environment without requiring code changes or agents. middleBrick operates as a black-box scanner that submits a URL and returns a risk score with prioritized findings, making it suitable for gating promotion between blue and green stages.

Scan characteristics aligned to deployment workflows

Scan time is under a minute, and methods are strictly read-only (GET and HEAD), with text-only POST reserved for LLM probes. This behavior avoids production impact and fits cleanly into pre-deploy or smoke-check stages. The scanner first requires a domain verification gate, where ownership is proven via DNS TXT record or an HTTP well-known file, ensuring that only the domain owner can submit authenticated scans.

Authenticated scanning for environment comparison

Starter tier and above support Bearer, API key, Basic auth, and Cookie authentication, which enables scanning APIs that are only reachable after login. Credentials are accepted only after domain verification, and the scanner forwards a strict allowlist of headers, including Authorization, X-API-Key, Cookie, and X-Custom-*. OpenAPI specifications are parsed with recursive $ref resolution, and findings are cross-referenced against the spec to highlight undefined security schemes or missing pagination that could differ between blue and green deployments.

Coverage relevant to deployment safety and compliance mapping

The scanner evaluates 12 categories aligned to OWASP API Top 10 (2023), including Authentication bypass, BOLA and BFLA, Input Validation, Data Exposure, and SSRF. Each finding maps to compliance controls described in PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023), providing audit evidence relevant to deployment safety. For example, exposed PII patterns, leaked API keys, or missing security headers can be identified before traffic shifts to the new environment.

Integration options and continuous monitoring

The toolchain includes a CLI with JSON or text output, a GitHub Action that fails the build when the score drops below a threshold, an MCP Server for AI-assisted workflows, and a Web Dashboard for tracking score trends. Pro tier adds scheduled rescans every 6 hours, daily, weekly, or monthly, with diff detection across scans to surface new findings, resolved issues, and score drift. HMAC-SHA256 signed webhooks notify external systems, and alerts are rate-limited to one per hour per API.

Frequently Asked Questions

Can I scan both blue and green environments and compare results?

Yes. You can run authenticated scans against each environment, store the reports, and use the dashboard diffing or the Pro-tier rescan comparisons to detect new findings or score changes.

Does the scanner require an agent or SDK in my application?

No. It is a black-box scanner that needs no agents, code access, or SDK integration, so it can be used on any environment reachable via HTTP without code changes.

Will scanning disrupt live services during deployment?

Impacts are minimized by read-only methods and strict rate-limit awareness. Destructive payloads are never sent, and private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers.

How are compliance requirements addressed in findings?

Can I integrate scans into CI/CD pipelines and fail builds on poor scores?

Yes. The GitHub Action supports CI/CD gating based on score thresholds, and the CLI can be scripted to fail the build when security risk is above your defined acceptable level.