SCAFU

Executive Summary

This security assessment identified a CRITICAL vulnerability involving production logging credentials exposed in publicly accessible frontend code.

Primary Finding: A logging API key is hardcoded in the client-side JavaScript bundle, providing full read access to production application logs. This was verified through direct API access using only publicly available information.

Types of Data Exposed:

Customer email addresses (authentication logs)
Computer/machine names (corporate naming patterns)
Internal IP addresses and network topology
HTTP request patterns and API interactions
Session tokens and application identifiers
Backend infrastructure details
Real-time user activity monitoring

Impact: Any individual with basic web inspection skills can access these production logs, revealing detailed customer information and internal system operations in real-time.

Critical Vulnerability

LOGGING API KEY EXPOSED IN FRONTEND CODE

CRITICAL

The logging API key and server URL are hardcoded in the production JavaScript bundle, granting any visitor full read access to production application logs containing customer PII and system internals.

Location: /_next/static/chunks/app/(landing)/page-[hash].js

Exposed Credentials:
  serverUrl: "https://logs.example-app.com/"
  apiKey: "[REDACTED]"

Verification Method:
  1. Inspect page source of target application
  2. Search JavaScript bundles for logging service
  3. Extract API key and server URL
  4. Access logs via public API endpoint

Test Command:
  curl "https://logs.example-app.com/api/events?count=100" \
    -H "X-Api-Key: [REDACTED]"
  
Result: HTTP 200 OK - Full read access to production logs confirmed

Evidence: Live Production Logs Accessible

Direct verification shows:

Real-time log entries with recent timestamps
HTTP requests to authentication endpoints
User identifiers and session information
Backend version updates and system checks
Cloud storage references (S3, Azure, etc.)
Token refresh processes and WebSocket connections
Internal API endpoints and server details

Categories of Data Exposed in Logs

User Identification: Email addresses visible in authentication flows
Network Information: Internal IP addresses revealing corporate network topology
Machine Names: Computer hostnames and device identifiers
Application State: Session identifiers and user tokens
Backend Details: Server endpoints, port numbers, storage locations
User Activity: Real-time operations and behavioral patterns
Version Information: Current versions, update mechanisms

Note: This is a redacted sample report. Specific identifiers have been removed to protect privacy.

Production Data PII Exposure Real-time Access No Authentication Required

High Severity Findings

ANALYTICS API KEY EXPOSED

HIGH

Analytics API key is exposed in frontend JavaScript, allowing unauthorized parties to inject fake events, track user behavior, or potentially exhaust API quotas.

Location: /_next/static/chunks/app/layout-[hash].js
API Key: [REDACTED]

Potential Impact:
- Analytics data poisoning
- Fake event injection affecting business decisions
- User behavior tracking by third parties
- API quota exhaustion

PAYMENT CONFIGURATION EXPOSED

HIGH

Complete payment gateway configuration visible in client-side code, including business IDs, store IDs, and checkout configuration.

Exposed Configuration:
{
  "businessId": "[REDACTED]",
  "storeId": "[REDACTED]",
  "checkoutUrlId": "[REDACTED]",
  "merchantId": "[REDACTED]",
  "isCustomPrice": 1
}

Risk: Business logic manipulation potential

Medium Severity Findings

WILDCARD CORS POLICY

MEDIUM

Access-Control-Allow-Origin: * allows any website to make cross-origin requests to your domain.

MISSING SECURITY HEADERS

MEDIUM

Missing essential security headers: Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy.

PUBLICLY ACCESSIBLE STORAGE

MEDIUM

Application files publicly accessible from cloud storage without authentication.

WEAK EMAIL SECURITY POLICY

MEDIUM

DMARC policy set to "none" (monitoring only) - allows email spoofing despite SPF configuration.

Attack Surface Summary

Component	Status	Risk Level	Verification	Impact
Logging API Key	EXPOSED	CRITICAL	Verified - Active Access	Production Data Breach
Analytics Key	Exposed	HIGH	Verified in Code	Analytics Poisoning
Payment Config	Exposed	HIGH	Verified in Code	Business Logic Risk
CORS Policy	Wildcard	MEDIUM	Header Analysis	Cross-Origin Attacks
Security Headers	Missing (5)	MEDIUM	Header Analysis	Multiple Vectors
Cloud Storage	Public Access	MEDIUM	Direct Access Test	Information Disclosure

Remediation Plan

IMMEDIATE (Next 4 Hours)

REVOKE the exposed API key - Immediately invalidate compromised credentials
Generate new API key with restricted permissions (backend-only access)
Remove credentials from frontend - Delete all client-side credential code
Deploy emergency build - Push updated code without hardcoded secrets
Audit server access logs - Determine if/when unauthorized access occurred
Notify security/legal team - Begin formal incident assessment
Review all frontend code - Scan for additional exposed secrets

SHORT TERM (24-48 Hours)

Rotate all exposed API keys - Add domain restrictions or implement server-side proxy
Implement backend proxy - All external service calls through authenticated backend
Fix CORS policy - Change from "*" to specific allowed origins
Add basic security headers - CSP, X-Frame-Options, X-Content-Type-Options
Document incident - Timeline, impact scope, response actions taken

MEDIUM TERM (1-2 Weeks)

Implement comprehensive CSP with proper directives for all resources
Add Subresource Integrity (SRI) to external scripts
Restrict storage access - Implement signed URLs for downloads
Update email security policy - Strengthen DMARC configuration
Add Permissions-Policy header to restrict browser features
Create security.txt for vulnerability disclosure

LONG TERM (1-3 Months)

Implement secrets management - HashiCorp Vault or cloud-native solution
Add pre-commit secret scanning - Prevent future credential exposure
Establish security SDLC - Code review, security testing in CI/CD
Compliance program - Consider SOC 2 Type II certification
Regular penetration testing - Quarterly external assessments
Security training - Developer education on secure coding practices

Testing Methodology

Approach: External black-box security assessment using only publicly accessible information

Testing Phases:

✅ Reconnaissance: DNS enumeration, subdomain discovery, technology fingerprinting
✅ Source Code Analysis: JavaScript bundle inspection, exposed credentials search
✅ API Testing: Direct verification of exposed API key functionality
✅ Security Header Analysis: HTTP response header examination
✅ Infrastructure Enumeration: Cloud resource identification
✅ Evidence Collection: Screenshot verification and documentation

Testing Tools: SCAFU v3 with integrated scanners (Nuclei, dalfox, ffuf, testssl.sh, and more)

Testing Boundaries: Read-only access, no destructive testing, no data modification

Report Summary

Assessment Type: External Security Assessment
Authorization: Authorized by Development Team
Assessment Date: October 2024
Report Status: SAMPLE - DEMONSTRATION

Findings Summary:
Critical: 1 (Exposed production logging API key)
High:    2 (Analytics key, Payment configuration)
Medium:  4 (CORS, Headers, Storage access, Email policy)

Overall Risk: CRITICAL - Immediate remediation required
Primary Concern: Active production data exposure via hardcoded API credentials

Report Format: HTML with comprehensive technical details
Classification: CONFIDENTIAL

SAMPLE REPORT - DEMONSTRATION PURPOSES

CRITICAL FINDING: PRODUCTION API KEY EXPOSURE

Executive Summary

Critical Vulnerability

Evidence: Live Production Logs Accessible

Categories of Data Exposed in Logs

High Severity Findings

Medium Severity Findings

Attack Surface Summary

Remediation Plan

IMMEDIATE (Next 4 Hours)

SHORT TERM (24-48 Hours)

MEDIUM TERM (1-2 Weeks)

LONG TERM (1-3 Months)

Testing Methodology

Report Summary