# Environment Variables and Secrets Audit Report

**Date:** 2025-01-20  
**Status:** 📋 Comprehensive Audit  
**Purpose:** Audit all .env files for required secrets and identify missing/incomplete values

---

## Executive Summary

This report provides a comprehensive audit of all environment variable files (`.env`) in the project, identifying required secrets, missing values, placeholder values, and security concerns.

---

## Files Audited

### Root Level
- `.env` - Main project configuration

### Service-Specific
- `omada-api/.env` - Omada Controller API configuration
- `smom-dbis-138/.env` - SMOM/DBIS-138 blockchain services
- `dbis_core/.env` - DBIS Core banking system
- `explorer-monorepo/.env` - Block explorer services
- `miracles_in_motion/.env.production` - Miracles in Motion application

### Templates
- `config/production/.env.production.template` - Production template
- `smom-dbis-138/.env.template` - Service template
- Various `.env.example` files

---

## Critical Secrets Status

### ✅ Root .env File (./.env)

**Status:** Partially Configured

**Found Variables:**
- ✅ `CLOUDFLARE_TUNNEL_TOKEN` - Set
- ✅ `CLOUDFLARE_API_KEY` - Set (Legacy - consider migrating to API Token)
- ✅ `CLOUDFLARE_ACCOUNT_ID` - Set
- ✅ `CLOUDFLARE_ZONE_ID` - Set (multiple zones)
- ✅ `CLOUDFLARE_DOMAIN` - Set
- ✅ `CLOUDFLARE_EMAIL` - Set
- ✅ `CLOUDFLARE_TUNNEL_ID` - Set
- ✅ `CLOUDFLARE_ORIGIN_CA_KEY` - Set
- ✅ Multiple zone IDs for different domains

**Missing/Concerns:**
- ⚠️ `CLOUDFLARE_API_TOKEN` - Not found (using API_KEY instead - less secure)
- ⚠️ Proxmox passwords not in root .env (may be in other locations)

**Recommendations:**
1. Migrate from `CLOUDFLARE_API_KEY` to `CLOUDFLARE_API_TOKEN` for better security
2. Consider consolidating secrets in root .env or using secrets management

---

### ⚠️ Omada API (.env)

**Status:** Partially Configured

**Found Variables:**
- ✅ `OMADA_CONTROLLER_URL` - Set
- ⚠️ `OMADA_API_KEY` - Set but may need verification
- ⚠️ `OMADA_API_SECRET` - Empty or needs setting
- ✅ `OMADA_SITE_ID` - Set
- ✅ `OMADA_VERIFY_SSL` - Set
- ✅ `OMADA_CLIENT_ID` - Set
- ✅ `OMADA_CLIENT_SECRET` - Set

**Missing/Concerns:**
- ⚠️ Verify `OMADA_API_SECRET` is set correctly
- ⚠️ Ensure credentials match Omada controller requirements

---

### ⚠️ SMOM/DBIS-138 (.env)

**Status:** Contains Sensitive Values

**Found Variables:**
- ✅ `RPC_URL` - Set
- 🔒 `PRIVATE_KEY` - **CRITICAL** - Private key present (0x5373d11ee2cad4ed82b9208526a8c358839cbfe325919fb250f062a25153d1c8)
- ✅ Multiple contract addresses - Set
- ✅ Token addresses - Set

**Security Concerns:**
- 🔒 **CRITICAL:** Private key is exposed in .env file
- ⚠️ Private key should be in secure storage, not in version control
- ⚠️ Ensure .env is in .gitignore

**Recommendations:**
1. **IMMEDIATE:** Verify .env is in .gitignore
2. Move private key to secure storage (key vault, encrypted file)
3. Use environment variable injection at runtime
4. Consider key management system

---

### ✅ DBIS Core (.env)

**Status:** Configured

**Found Variables:**
- ✅ `DATABASE_URL` - Set with credentials
  - Format: `postgresql://user:password@host:port/database`
  - Contains password in connection string

**Security Concerns:**
- ⚠️ Database password in connection string
- ✅ Should be in .gitignore

**Recommendations:**
1. Verify .env is in .gitignore
2. Consider separate DATABASE_USER and DATABASE_PASSWORD variables
3. Use secrets management for production

---

### ⚠️ Explorer Monorepo (.env)

**Status:** Contains Sensitive Values

**Found Variables:**
- 🔒 `PRIVATE_KEY` - **CRITICAL** - Private key present (appears multiple times, some empty)
- ✅ `LINK_TOKEN` - Set
- ✅ `ORACLE_AGGREGATOR_ADDRESS` - Set
- ✅ `CCIP_ROUTER_ADDRESS` - Set
- ✅ `CCIP_RECEIVER` - Set
- ✅ `CCIP_LOGGER` - Set
- ✅ `ORACLE_PROXY_ADDRESS` - Set

**Security Concerns:**
- 🔒 **CRITICAL:** Private key exposed
- ⚠️ Multiple backup files with private keys (`.env.backup.*`)
- ⚠️ Empty PRIVATE_KEY entries (cleanup needed)

**Recommendations:**
1. Remove backup files with secrets from repository
2. Secure private key storage
3. Clean up empty/duplicate entries
4. Add backup files to .gitignore

---

## Required Secrets Checklist

### Critical (Must Have)

#### Cloudflare
- [x] `CLOUDFLARE_API_KEY` or `CLOUDFLARE_API_TOKEN` - ✅ Set (using API_KEY)
- [x] `CLOUDFLARE_ACCOUNT_ID` - ✅ Set
- [x] `CLOUDFLARE_ZONE_ID` - ✅ Set (multiple)
- [x] `CLOUDFLARE_TUNNEL_TOKEN` - ✅ Set
- [ ] `CLOUDFLARE_API_TOKEN` - ⚠️ Recommended but not set (using API_KEY)

#### Blockchain/Private Keys
- [x] `PRIVATE_KEY` - ⚠️ Set but **SECURITY CONCERN** (exposed in files)
- [ ] Private key secure storage - 🔒 **NEEDS SECURE STORAGE**

#### Database
- [x] `DATABASE_URL` - ✅ Set (contains password)

### High Priority

#### Service-Specific
- [x] `OMADA_API_KEY` / `OMADA_CLIENT_SECRET` - ✅ Set
- [x] Contract addresses - ✅ Set
- [x] RPC URLs - ✅ Set

### Medium Priority

#### Optional Services
- Various service-specific variables
- Monitoring credentials (if enabled)
- Third-party API keys (if used)

---

## Security Issues Identified

### 🔴 Critical Issues

1. **Private Keys in .env Files**
   - **Location:** `smom-dbis-138/.env`, `explorer-monorepo/.env`
   - **Risk:** Private keys exposed in version control risk
   - **Action:** Verify .gitignore, move to secure storage

2. **Backup Files with Secrets**
   - **Location:** `explorer-monorepo/.env.backup.*`
   - **Risk:** Secrets in backup files
   - **Action:** Remove from repository, add to .gitignore

3. **Database Passwords in Connection Strings**
   - **Location:** `dbis_core/.env`
   - **Risk:** Password exposure if file is accessed
   - **Action:** Consider separate variables or secrets management

### ⚠️ Medium Priority Issues

1. **Using Legacy API Key Instead of Token**
   - **Location:** Root `.env`
   - **Issue:** `CLOUDFLARE_API_KEY` used instead of `CLOUDFLARE_API_TOKEN`
   - **Action:** Migrate to API token for better security

2. **Empty/Placeholder Values**
   - Some variables may have placeholder values
   - Action: Review and replace with actual values

3. **Multiple .env Files**
   - Secrets scattered across multiple files
   - Action: Consider consolidation or centralized secrets management

---

## Recommendations

### Immediate Actions

1. **Verify .gitignore**
   ```bash
   # Ensure these are in .gitignore:
   .env
   .env.local
   .env.*.local
   *.env.backup
   ```

2. **Secure Private Keys**
   - Move private keys to secure storage (key vault, encrypted file)
   - Use environment variable injection
   - Never commit private keys to repository

3. **Clean Up Backup Files**
   - Remove `.env.backup.*` files from repository
   - Add to .gitignore
   - Store backups securely if needed

4. **Migrate to API Tokens**
   - Replace `CLOUDFLARE_API_KEY` with `CLOUDFLARE_API_TOKEN`
   - Use API tokens for better security

### Short-Term Improvements

1. **Implement Secrets Management**
   - Use HashiCorp Vault, AWS Secrets Manager, or similar
   - Encrypt sensitive values
   - Implement access controls

2. **Consolidate Secrets**
   - Consider centralized secrets storage
   - Use environment-specific files
   - Document secret locations

3. **Create .env.example Files**
   - Template files without real values
   - Document required variables
   - Include in repository

### Long-Term Improvements

1. **Secret Rotation**
   - Implement secret rotation procedures
   - Document rotation schedule
   - Automate where possible

2. **Access Control**
   - Limit access to secrets
   - Implement audit logging
   - Use role-based access

3. **Monitoring**
   - Monitor for exposed secrets
   - Alert on unauthorized access
   - Regular security audits

---

## Missing Secrets (Not Found)

Based on documentation and script analysis, these secrets may be needed but not found:

### Proxmox
- `PROXMOX_TOKEN_VALUE` - Proxmox API token (may be in ~/.env)
- Proxmox node passwords (may be hardcoded in scripts)

### Additional Services
- `JWT_SECRET` - If JWT authentication is used
- `SESSION_SECRET` - If sessions are used
- `ETHERSCAN_API_KEY` - For contract verification
- Various service API keys

---

## File Locations Summary

| File | Status | Secrets Found | Security Concerns |
|------|--------|---------------|-------------------|
| `./.env` | ✅ Configured | Cloudflare credentials | Using API_KEY instead of TOKEN |
| `omada-api/.env` | ⚠️ Partial | Omada credentials | Verify API_SECRET |
| `smom-dbis-138/.env` | 🔒 Sensitive | Private key, contracts | **Private key exposed** |
| `dbis_core/.env` | ✅ Configured | Database credentials | Password in connection string |
| `explorer-monorepo/.env` | 🔒 Sensitive | Private key, addresses | **Private key exposed** |
| `explorer-monorepo/.env.backup.*` | 🔒 Sensitive | Private keys | **Backup files with secrets** |

---

## Next Steps

1. **Run Audit Script**
   ```bash
   ./scripts/check-env-secrets.sh
   ```

2. **Verify .gitignore**
   - Ensure all .env files are ignored
   - Add backup files to .gitignore

3. **Review Security Issues**
   - Address critical issues (private keys)
   - Migrate to secure storage
   - Clean up backup files

4. **Document Required Secrets**
   - Update REQUIRED_SECRETS_INVENTORY.md
   - Create .env.example templates
   - Document secret locations

5. **Implement Improvements**
   - Migrate to API tokens
   - Implement secrets management
   - Set up monitoring

---

## Related Documentation

- [Required Secrets Inventory](REQUIRED_SECRETS_INVENTORY.md)
- [Cloudflare API Setup](CLOUDFLARE_API_SETUP.md)
- [Secrets and Keys Configuration](SECRETS_KEYS_CONFIGURATION.md)

---

**Last Updated:** 2025-01-20  
**Status:** 📋 Audit Complete  
**Next Review:** After security improvements
