ColdFusion Security Hardening Guide

Advanced security techniques for production ColdFusion 2025 environments

Security hardening transforms a baseline-secure ColdFusion installation into a defense-in-depth production environment resistant to advanced persistent threats. This guide covers enterprise security practices, compliance requirements, comprehensive API security, monitoring, and incident response.

Before implementing these hardening techniques, ensure you have completed the Security Baseline steps, including running the Adobe Lockdown Tool, configuring deny-by-default controls, and removing unnecessary services.

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Production Environment Lockdown

Administrator Interface Isolation

For production deployments, the ColdFusion Administrator represents a critical attack surface:

  • Container Deployments: Remove the Administrator WAR entirely from production container images. Manage all configuration through environment variables and infrastructure-as-code.
  • Traditional Deployments: Bind the Administrator to localhost (127.0.0.1) only, requiring SSH tunnel or bastion host access for administrative tasks.
  • Network Segmentation: If the Administrator must be accessible remotely, place it on a separate management VLAN with firewall rules restricting access to specific administrator IPs.
  • Multi-Factor Authentication: Require MFA for all administrator access using TOTP (Time-based One-Time Password) or hardware security keys.

Web Server Security Headers

Implement comprehensive security headers in your web server configuration (Apache, IIS, or nginx):

Web Server Security Headers
# Apache .htaccess or VirtualHost configuration
Header always set Content-Security-Policy "default-src 'self'; script-src 'self' 'nonce-{RANDOM}'; object-src 'none'; base-uri 'self'; frame-ancestors 'none';"
Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
Header always set X-Frame-Options "DENY"
Header always set X-Content-Type-Options "nosniff"
Header always set Referrer-Policy "strict-origin-when-cross-origin"
Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"
Header always unset X-Powered-By
Header always unset Server

File System Isolation

Implement strict file system access controls beyond pathfilter.json:

  • Run ColdFusion under a dedicated service account with minimal OS-level permissions
  • Configure web root as read-only, with separate writable directories for uploads and temporary files
  • Disable execute permissions on upload directories entirely
  • Use AppArmor (Linux) or Code Integrity policies (Windows) to restrict ColdFusion process capabilities
  • Store sensitive configuration files (Application.cfc, credentials) outside the web root

Critical Security Note

Never rely on a single security control. Defense-in-depth requires multiple overlapping layers - if one control fails, others continue to provide protection.

REST API Security

Authentication and Authorization

Implement robust authentication and authorization for all API endpoints:

JWT Token-Based Authentication

JWT Token Generation
// Generate JWT token using RS256 signing (private key stored securely)
function generateJWT(required numeric userId, required string role) {
    var payload = {
        "iss": "https://api.yourdomain.com",
        "sub": arguments.userId,
        "role": arguments.role,
        "iat": now().getTime() / 1000,
        "exp": (now().getTime() / 1000) + 3600, // 1 hour expiration
        "jti": createUUID() // Unique token ID for revocation
    };

    // Use RS256 signing with private key from environment variable
    var privateKey = getEnvironmentVariable("JWT_PRIVATE_KEY");
    return jwtEncode(payload, privateKey, "RS256");
}

// Validate JWT token
function validateJWT(required string token) {
    try {
        var publicKey = getEnvironmentVariable("JWT_PUBLIC_KEY");
        var payload = jwtDecode(arguments.token, publicKey, "RS256");

        // Check expiration
        if (payload.exp < now().getTime() / 1000) {
            throw(type="TokenExpired", message="JWT token has expired");
        }

        // Check if token has been revoked (check against Redis cache)
        if (isTokenRevoked(payload.jti)) {
            throw(type="TokenRevoked", message="JWT token has been revoked");
        }

        return payload;
    } catch (any e) {
        // Log security event
        logSecurityEvent("jwt_validation_failed", {error: e.message, token: left(arguments.token, 20)});
        throw(type="Unauthorized", message="Invalid authentication token");
    }
}

OAuth 2.0 Integration

For third-party API access, implement OAuth 2.0 with appropriate grant types:

  • Authorization Code Grant: For user-facing applications requiring delegated access
  • Client Credentials Grant: For server-to-server API communication
  • Refresh Token Rotation: Implement refresh token rotation to limit the impact of token theft
  • Scope-Based Permissions: Define granular scopes (read:users, write:orders) and enforce at endpoint level

Rate Limiting and Throttling

Protect API endpoints from abuse with comprehensive rate limiting:

Rate Limiting Configuration
// Rate limiting configuration in Application.cfc
this.rateLimits = {
    "authenticated": {
        "requests": 100,
        "window": 60, // 100 requests per 60 seconds
        "burst": 20   // Allow short bursts up to 20 requests
    },
    "unauthenticated": {
        "requests": 10,
        "window": 60,
        "burst": 5
    },
    "admin": {
        "requests": 1000,
        "window": 60,
        "burst": 50
    }
};

// Implement rate limiting using Redis
function checkRateLimit(required string clientId, required string tier) {
    var limits = application.rateLimits[arguments.tier];
    var key = "rate_limit:#arguments.clientId#:#arguments.tier#";

    var currentCount = redisIncrement(key);

    if (currentCount == 1) {
        // First request in window, set expiration
        redisExpire(key, limits.window);
    }

    if (currentCount > limits.requests) {
        // Log rate limit violation
        logSecurityEvent("rate_limit_exceeded", {
            clientId: arguments.clientId,
            tier: arguments.tier,
            count: currentCount
        });

        // Return 429 Too Many Requests
        cfheader(statusCode="429", statusText="Too Many Requests");
        cfheader(name="Retry-After", value=limits.window);
        writeOutput(serializeJSON({
            "error": "rate_limit_exceeded",
            "message": "Too many requests. Please try again later."
        }));
        abort;
    }

    // Add rate limit headers to response
    cfheader(name="X-RateLimit-Limit", value=limits.requests);
    cfheader(name="X-RateLimit-Remaining", value=limits.requests - currentCount);
    cfheader(name="X-RateLimit-Reset", value=now().getTime() + (limits.window * 1000));
}

Input Validation and Sanitization

Validate all API input against strict schemas:

  • Use JSON Schema validation for request bodies
  • Reject requests with unexpected fields to prevent mass assignment vulnerabilities
  • Enforce strict type checking (string, number, boolean, array)
  • Limit payload sizes (typically 1MB maximum for JSON, 10MB for file uploads)
  • Sanitize all string inputs to prevent injection attacks

Enterprise API Security Expertise

Convective has secured 100+ ColdFusion APIs for financial services, healthcare, and e-commerce clients. Our security architects can audit your API implementation and implement enterprise-grade security controls.

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Advanced Session Management

Secure Session Configuration

Configure Application.cfc for maximum session security:

Secure Session Configuration
component {
    this.name = "SecureApplication";

    // Use J2EE session variables for better security and clustering
    this.sessionManagement = true;
    this.sessionStorage = "memory"; // Or "redis" for distributed sessions
    this.sessionTimeout = createTimeSpan(0, 0, 30, 0); // 30 minute idle timeout
    this.setClientCookies = true;

    // Secure session cookie configuration
    this.sessionCookie = {
        httpOnly: true,        // Prevent JavaScript access
        secure: true,          // Require HTTPS transmission
        sameSite: "strict",    // Prevent CSRF attacks
        domain: ".yourdomain.com",  // Scope to specific domain
        timeout: createTimeSpan(0, 0, 30, 0)
    };

    // Enable CSRF protection
    this.csrfProtection = true;
    this.csrfGenerateToken = true;

    function onSessionStart() {
        // Set absolute session timeout (independent of activity)
        session.absoluteTimeout = now().add("h", 4); // 4 hour maximum
        session.createdAt = now();
        session.lastActivity = now();

        // Track session metadata for security monitoring
        session.ipAddress = CGI.REMOTE_ADDR;
        session.userAgent = CGI.HTTP_USER_AGENT;

        // Generate unique session reference for logging
        session.sessionReference = createUUID();
    }

    function onRequestStart(required string targetPage) {
        // Check absolute timeout
        if (structKeyExists(session, "absoluteTimeout") &&
            now() > session.absoluteTimeout) {
            logSecurityEvent("session_absolute_timeout", {
                sessionRef: session.sessionReference,
                userId: session.userId ?: "anonymous"
            });
            sessionInvalidate();
            location(url="/login?reason=timeout", addToken=false);
        }

        // Detect session hijacking attempts
        if (structKeyExists(session, "ipAddress") &&
            session.ipAddress != CGI.REMOTE_ADDR) {
            logSecurityEvent("session_hijack_attempt", {
                sessionRef: session.sessionReference,
                originalIP: session.ipAddress,
                attemptIP: CGI.REMOTE_ADDR
            });
            sessionInvalidate();
            location(url="/login?reason=security", addToken=false);
        }

        // Update last activity
        session.lastActivity = now();
    }

    function onLogin(required numeric userId, required string role) {
        // Regenerate session ID on privilege elevation
        sessionRotate();

        session.userId = arguments.userId;
        session.role = arguments.role;
        session.loginTime = now();

        // Implement concurrent session limits
        enforceSessionLimit(arguments.userId, maxSessions=3);

        logSecurityEvent("user_login", {
            userId: arguments.userId,
            sessionRef: session.sessionReference
        });
    }
}

Distributed Session Management

For clustered environments, use Redis for session storage:

  • Configure Redis with TLS encryption for session data transmission
  • Use Redis persistence (RDB + AOF) to prevent session loss on restart
  • Implement session replication across multiple Redis instances for high availability
  • Set appropriate TTL (Time To Live) on Redis keys matching session timeout

File Upload Defense-in-Depth

File uploads represent one of the highest-risk operations in web applications. Implement multiple validation layers:

Secure File Upload Validation
function secureFileUpload(required string formField, required string allowedTypes, required numeric maxSizeBytes) {
    try {
        // Layer 1: File type validation
        var upload = fileUpload(
            destination = getUploadTempDirectory(),
            fileField = arguments.formField,
            accept = arguments.allowedTypes,
            nameConflict = "makeunique",
            mode = "644"
        );

        // Layer 2: File size validation
        if (upload.fileSize > arguments.maxSizeBytes) {
            fileDelete(upload.serverDirectory & "/" & upload.serverFile);
            throw(type="ValidationError", message="File exceeds maximum size limit");
        }

        // Layer 3: Magic number validation (verify actual file type)
        if (!validateFileMagicNumber(upload.serverDirectory & "/" & upload.serverFile, upload.serverFileExt)) {
            fileDelete(upload.serverDirectory & "/" & upload.serverFile);
            logSecurityEvent("file_upload_magic_number_mismatch", {
                declaredType: upload.serverFileExt,
                fileName: upload.clientFile
            });
            throw(type="SecurityError", message="File type verification failed");
        }

        // Layer 4: Virus scanning
        var scanResult = scanFileForVirus(upload.serverDirectory & "/" & upload.serverFile);
        if (scanResult.virusFound) {
            fileDelete(upload.serverDirectory & "/" & upload.serverFile);
            logSecurityEvent("virus_detected_in_upload", {
                virusName: scanResult.virusName,
                fileName: upload.clientFile
            });
            throw(type="SecurityError", message="File failed security scan");
        }

        // Layer 5: Generate new secure filename
        var secureFilename = createUUID() & "." & upload.serverFileExt;
        var finalPath = getSecureStoragePath() & "/" & secureFilename;

        // Layer 6: Move to secure storage (outside web root)
        fileMove(upload.serverDirectory & "/" & upload.serverFile, finalPath);

        // Layer 7: Create database record with access controls
        var fileRecord = queryExecute("
            INSERT INTO uploaded_files (
                id, user_id, original_filename, stored_filename,
                file_size, mime_type, upload_date, checksum
            ) VALUES (
                :id, :userId, :originalFilename, :storedFilename,
                :fileSize, :mimeType, :uploadDate, :checksum
            )
        ", {
            id: {value: createUUID(), cfsqltype: "varchar"},
            userId: {value: session.userId, cfsqltype: "integer"},
            originalFilename: {value: upload.clientFile, cfsqltype: "varchar"},
            storedFilename: {value: secureFilename, cfsqltype: "varchar"},
            fileSize: {value: upload.fileSize, cfsqltype: "integer"},
            mimeType: {value: upload.contentType, cfsqltype: "varchar"},
            uploadDate: {value: now(), cfsqltype: "timestamp"},
            checksum: {value: hash(fileRead(finalPath)), cfsqltype: "varchar"}
        });

        logSecurityEvent("file_upload_success", {
            userId: session.userId,
            fileName: upload.clientFile,
            fileSize: upload.fileSize
        });

        return {
            success: true,
            fileId: fileRecord.generatedKey,
            filename: secureFilename
        };

    } catch (any e) {
        logSecurityEvent("file_upload_failed", {
            error: e.message,
            formField: arguments.formField
        });
        return {
            success: false,
            error: "File upload failed. Please try again or contact support."
        };
    }
}

function validateFileMagicNumber(required string filePath, required string expectedExtension) {
    // Read first 12 bytes of file to check magic number
    var fileBytes = fileReadBinary(arguments.filePath);
    var magicBytes = binarySlice(fileBytes, 1, 12);

    var signatures = {
        "pdf": "255044462D",  // %PDF-
        "jpg": "FFD8FF",
        "png": "89504E47",
        "gif": "474946383",
        "zip": "504B0304"
    };

    if (!structKeyExists(signatures, arguments.expectedExtension)) {
        return false;
    }

    var expectedSignature = signatures[arguments.expectedExtension];
    var actualSignature = binaryEncode(magicBytes, "hex").left(len(expectedSignature));

    return (compareNoCase(actualSignature, expectedSignature) == 0);
}

Database Security Beyond cfqueryparam

Least Privilege Database Accounts

Create separate database users for different application functions:

Least Privilege Database Accounts
-- Read-only account for reporting
CREATE USER 'app_reader'@'cfserver' IDENTIFIED BY 'secure_password';
GRANT SELECT ON app_database.* TO 'app_reader'@'cfserver';

-- Application account with minimal write permissions
CREATE USER 'app_writer'@'cfserver' IDENTIFIED BY 'secure_password';
GRANT SELECT, INSERT, UPDATE ON app_database.* TO 'app_writer'@'cfserver';
REVOKE DELETE ON app_database.* FROM 'app_writer'@'cfserver';

-- Administrative account (should only be used by DBAs, not application)
CREATE USER 'app_admin'@'cfserver' IDENTIFIED BY 'secure_password';
GRANT ALL PRIVILEGES ON app_database.* TO 'app_admin'@'cfserver';

-- Never grant these to application accounts:
-- DROP, CREATE, ALTER, TRUNCATE, GRANT, SUPER, FILE, PROCESS

Query Parameterization and Timeouts

Query Parameterization with Timeouts
// Always use cfqueryparam with explicit SQL types
var result = queryExecute("
    SELECT user_id, username, email, role
    FROM users
    WHERE username = :username
    AND account_status = :status
    AND created_date >= :minDate
", {
    username: {value: form.username, cfsqltype: "varchar", maxlength: 50},
    status: {value: "active", cfsqltype: "varchar"},
    minDate: {value: dateAdd("m", -6, now()), cfsqltype: "timestamp"}
}, {
    datasource: "myAppDS",
    timeout: 5,  // 5 second query timeout
    maxrows: 100 // Limit result set size
});

// For stored procedures, use cfstoredproc
cfquery(name="local.result", datasource="myAppDS", timeout="10") {
    writeOutput("CALL sp_get_user_orders(:userId)");
    queryparam(name="userId", value=session.userId, cfsqltype="cf_sql_integer");
}

Connection Encryption

Enable SSL/TLS for all database connections in ColdFusion Administrator:

  • Navigate to Data & Services > Data Sources
  • Edit datasource and enable SSL/TLS connection
  • Import database server SSL certificate into ColdFusion's JVM truststore
  • Verify encrypted connections using database monitoring tools

Compliance Frameworks

PCI DSS Compliance

For applications processing payment card data:

RequirementColdFusion Implementation
Encrypt cardholder data at restUse AES-256 encryption with encrypt() function, store keys in external vault
Encrypt data in transitEnforce TLS 1.2+ with strong cipher suites, disable weak protocols
Restrict access to cardholder dataImplement role-based access control, log all data access
Assign unique IDs to usersRequire individual administrator accounts, disable shared credentials
Track and monitor network accessLog all authentication events, API access, and administrative actions
Regularly test security systemsQuarterly vulnerability scans, annual penetration testing
Maintain information security policyDocument security procedures, conduct annual reviews

HIPAA Compliance

For healthcare applications handling Protected Health Information (PHI):

  • Access Controls: Implement unique user identification, automatic logoff after 15 minutes of inactivity, encryption of PHI at rest and in transit
  • Audit Logs: Log all PHI access (create, read, update, delete), retain logs for 6 years, protect logs from tampering
  • Data Integrity: Implement checksums to detect unauthorized PHI modifications
  • Disaster Recovery: Maintain encrypted backups, test recovery procedures quarterly
  • Business Associate Agreements: Ensure all third-party services (cloud hosting, monitoring tools) have signed BAAs

SOC 2 Type II

For SaaS applications requiring SOC 2 certification:

  • Security: Implement comprehensive access controls, network security, and encryption
  • Availability: Maintain 99.9% uptime SLA, implement redundancy and failover
  • Confidentiality: Protect customer data with encryption, access controls, and NDAs
  • Processing Integrity: Validate all input data, implement error handling and monitoring
  • Privacy: Honor customer data deletion requests, implement data retention policies

Security Monitoring and Alerting

Structured Security Logging

Structured Security Event Logging
function logSecurityEvent(required string eventType, required struct eventData) {
    var logEntry = {
        "timestamp": dateTimeFormat(now(), "iso8601"),
        "level": "security",
        "event_type": arguments.eventType,
        "user_id": session.userId ?: "anonymous",
        "session_id": session.sessionReference ?: "",
        "ip_address": CGI.REMOTE_ADDR,
        "user_agent": CGI.HTTP_USER_AGENT,
        "request_id": request.requestId ?: createUUID(),
        "url": CGI.SCRIPT_NAME,
        "method": CGI.REQUEST_METHOD,
        "server": CGI.SERVER_NAME,
        "cf_version": server.coldfusion.productversion
    };

    // Merge in event-specific data
    structAppend(logEntry, arguments.eventData);

    // Write to structured log file (JSON format)
    var logFile = expandPath("/logs/security-events.log");
    fileAppend(logFile, serializeJSON(logEntry) & chr(10));

    // Send to centralized logging system (Elasticsearch, Splunk, etc.)
    sendToSIEM(logEntry);

    // Check if this event should trigger an alert
    if (shouldAlert(arguments.eventType, arguments.eventData)) {
        triggerSecurityAlert(logEntry);
    }
}

Real-Time Security Alerts

Configure alerts for critical security events:

Alert ConditionThresholdResponse
Failed login attempts5+ failures in 5 minutes from single IPBlock IP for 1 hour, alert security team
Session hijack attemptIP address change for active sessionTerminate session immediately, alert user and security team
Privilege escalation attemptUnauthorized access to admin functionsBlock user account, alert security team immediately
SQL injection pattern detectedPatterns in input (UNION, DROP, etc.)Block request, log event, alert security team
Unusual API usage10x normal request volume in 1 hourRate limit aggressively, investigate source
File upload virus detectionAny virus detectedDelete file, block user temporarily, alert security

Metrics and Dashboards

Track key security metrics:

  • Authentication failure rate (failures per minute)
  • API error rate by endpoint
  • Average request duration (to detect DoS attempts)
  • Active session count and duration distribution
  • File upload volume and rejection rate
  • Database query execution time percentiles (p50, p95, p99)

Incident Response Procedures

Incident Classification

SeverityDescriptionResponse Time
P0 - CriticalActive breach, data exfiltration, ransomwareImmediate (within 15 minutes)
P1 - HighSuccessful privilege escalation, account takeoverWithin 1 hour
P2 - MediumRepeated failed attacks, DDoS attemptWithin 4 hours
P3 - LowScanning activity, single failed attackWithin 24 hours

Incident Response Checklist

1

Detection and Triage

  • Security monitoring system generates alert
  • On-call engineer acknowledges alert within SLA
  • Classify incident severity (P0-P3)
  • Assemble incident response team for P0/P1 incidents
2

Containment

  • Isolate affected servers from network (for P0 incidents)
  • Block attacker IP addresses at firewall
  • Disable compromised user accounts
  • Take snapshots of affected systems for forensics
  • Preserve all logs before they rotate
3

Investigation

  • Review security logs to determine attack timeline
  • Identify attack vector (SQL injection, credential stuffing, etc.)
  • Determine scope of compromise (affected data, systems)
  • Document all findings in incident tracker
4

Eradication

  • Apply security patches to close vulnerability
  • Remove any backdoors or web shells installed by attacker
  • Reset all credentials (database passwords, API keys, admin accounts)
  • For severe compromises, rebuild servers from clean images
5

Recovery

  • Restore systems from clean backups if necessary
  • Gradually restore service with enhanced monitoring
  • Implement additional security controls to prevent recurrence
  • Verify all systems are functioning normally
6

Post-Incident Review

  • Conduct blameless post-mortem within 1 week
  • Document lessons learned and preventive measures
  • Update security controls and monitoring rules
  • Update incident response playbooks
  • Provide required compliance notifications (GDPR within 72 hours, etc.)

Automated Security Testing

Static Application Security Testing (SAST)

Integrate security scanning into your CI/CD pipeline:

  • Dependency Scanning: Use OWASP Dependency-Check to scan for known vulnerabilities in Java libraries
  • Code Analysis: Implement FindSecBugs or SonarQube to detect security antipatterns
  • Secret Detection: Use git-secrets or TruffleHog to prevent credential commits
  • Configuration Review: Automate checks for insecure ColdFusion Administrator settings

Dynamic Application Security Testing (DAST)

Test running applications for vulnerabilities:

  • OWASP ZAP: Automated scanning for OWASP Top 10 vulnerabilities
  • Burp Suite: Manual penetration testing and vulnerability verification
  • Nuclei: Fast template-based scanning for known vulnerabilities

Security Test Automation

Automated Security Test Suite
// Example security test suite using TestBox
component extends="testbox.system.BaseSpec" {

    function run() {
        describe("Security Tests", function() {

            it("should reject SQL injection attempts", function() {
                var result = makeRequest("/api/users?id=' OR '1'='1");
                expect(result.statusCode).toBe(400);
                expect(result.body).notToContain("database error");
            });

            it("should prevent XSS in user input", function() {
                var result = makeRequest("/api/comments", "POST", {
                    comment: "<script>alert('XSS')</script>"
                });
                expect(result.body.comment).notToContain("<script>");
                expect(result.body.comment).toContain("&lt;script&gt;");
            });

            it("should enforce authentication on protected endpoints", function() {
                var result = makeRequest("/api/admin/users");
                expect(result.statusCode).toBe(401);
            });

            it("should implement rate limiting", function() {
                // Make 101 requests rapidly
                for (var i = 1; i <= 101; i++) {
                    var result = makeRequest("/api/public");
                    if (i > 100) {
                        expect(result.statusCode).toBe(429);
                        expect(result.headers["Retry-After"]).toBeNumeric();
                    }
                }
            });

            it("should set secure session cookies", function() {
                var result = makeRequest("/login", "POST", {
                    username: "testuser",
                    password: "password"
                });
                var setCookie = result.headers["Set-Cookie"];
                expect(setCookie).toContain("HttpOnly");
                expect(setCookie).toContain("Secure");
                expect(setCookie).toContain("SameSite=Strict");
            });
        });
    }
}

Frequently Asked Questions

The Security Baseline establishes minimum security requirements for any ColdFusion installation, including basic lockdown, admin access control, and deny-by-default configuration.

Security Hardening goes significantly beyond the baseline with advanced techniques for production environments:

  • Comprehensive API security with JWT and OAuth 2.0
  • Enterprise session management with distributed storage
  • Compliance frameworks (PCI DSS, HIPAA, SOC 2)
  • Security monitoring and alerting systems
  • Incident response procedures and playbooks
  • Advanced file system isolation beyond pathfilter
  • Database security beyond cfqueryparam
  • Automated security testing in CI/CD pipelines

Think of the baseline as essential security and hardening as defense-in-depth for production.

PCI DSS compliance for ColdFusion requires:

Data Protection:

  1. Never store sensitive authentication data (CVV, full track data) after authorization - use tokenization instead
  2. Encrypt cardholder data at rest using AES-256 encryption in your database
  3. Encrypt all cardholder data in transit using TLS 1.2+ with strong cipher suites

Access Control:

  1. Implement strong access control with unique IDs for all administrators
  2. Use role-based access control (RBAC) for application access
  3. Log all access to cardholder data with tamper-proof audit trails

Security Testing & Maintenance:

  1. Regularly scan for vulnerabilities using tools like OWASP ZAP
  2. Apply ColdFusion security patches within 30 days
  3. Use a WAF (Web Application Firewall) to protect payment processing endpoints
  4. Segment cardholder data environment from other networks
  5. Document all security policies and procedures

Use a QSA (Qualified Security Assessor) to validate compliance annually.

Critical security headers:

  1. Content-Security-Policy: Prevents XSS by controlling resource loading
    default-src 'self'; script-src 'self' 'nonce-RANDOM'; object-src 'none'
  2. Strict-Transport-Security: Forces HTTPS
    max-age=31536000; includeSubDomains; preload
  3. X-Frame-Options: Prevents clickjacking
    DENY or SAMEORIGIN
  4. X-Content-Type-Options: Prevents MIME sniffing
    nosniff
  5. Referrer-Policy: Controls referrer information
    strict-origin-when-cross-origin
  6. Permissions-Policy: Disables unnecessary browser features
    camera=(), microphone=(), geolocation=()

Implement these in your web server (Apache/IIS/nginx) configuration rather than in ColdFusion for better performance and to ensure they apply even if CF fails.

REST API security requires multiple layers:

Authentication & Authorization:

  • Use JWT tokens with RS256 signing (not HS256)
  • Include expiration (exp claim) and implement token refresh rotation
  • Implement OAuth 2.0 with appropriate grant types
  • Define scope-based permissions for granular access control

Rate Limiting:

  • 100 requests/minute for authenticated users
  • 10 requests/minute for unauthenticated access

Input Validation:

  • Validate all input against strict schemas
  • Reject unexpected fields
  • Limit payload sizes (<1MB)

Additional Controls:

  • Configure strict CORS policies with explicit allowed origins (never use wildcard * for credentialed requests)
  • HTTPS Only - reject all HTTP requests to API endpoints
  • API Versioning using URL versioning (/api/v1/)
  • Comprehensive logging with request IDs for audit trails
  • Generic error messages (log detailed errors server-side)
  • Security headers on all API responses

Secure session management configuration:

  1. Use J2EE session variables instead of ColdFusion session variables for better security and clustering
  2. Set httpOnly=true for session cookies to prevent JavaScript access
  3. Set secure=true to require HTTPS transmission
  4. Set sameSite=Strict or Lax to prevent CSRF
  5. Use short session timeouts (15-30 minutes for high-security apps, 60 minutes for standard apps)
  6. Implement absolute timeout (4-8 hours) in addition to idle timeout
  7. Regenerate session ID on privilege elevation (login, role change)
  8. Store minimal data in session scope, use database for sensitive data
  9. Implement concurrent session limits (1-3 sessions per user)
  10. Use cryptographically secure session IDs (CF default is secure, don't customize unless necessary)

Configure in Application.cfc with these settings.

File upload defense-in-depth requires multiple validation layers:

Validation:

  1. Validate MIME type server-side (don't trust client Content-Type header), use cffile accept attribute
  2. Extension Whitelist - only allow specific extensions (.pdf, .jpg, .png), never use blacklists
  3. Magic Number Validation - verify file signature bytes match declared type to prevent extension spoofing
  4. File Size Limits - enforce strict limits (e.g., 5MB for images, 10MB for documents)
  5. Virus Scanning - integrate with ClamAV or commercial antivirus for automatic scanning

Storage & Access:

  1. Store uploads outside web root entirely, or in a directory with execute permissions disabled
  2. Filename Sanitization - generate new filenames (UUID or timestamp-based), never use original filename
  3. Access Control - require authentication to download files, validate user has permission for specific file
  4. Content Delivery - serve files through a download script that sets appropriate Content-Type and Content-Disposition headers, not direct links
  5. Monitoring - log all upload activity and implement rate limiting per user

Comprehensive security logging and monitoring:

Application Logs:

  • Authentication events (login, logout, failed attempts)
  • Authorization failures
  • Input validation failures
  • Session events (creation, timeout, destruction)
  • File upload events
  • API access
  • Configuration changes
  • Exceptions

Log Format & Storage:

  • Implement structured logging (JSON format) with fields: timestamp, severity, event_type, user_id, ip_address, request_id, action, resource, outcome
  • Use centralized logging with ELK Stack or Splunk
  • Retain security logs for 90 days minimum (1 year for compliance)
  • Store logs on separate system with append-only access
  • Encrypt archived logs

Real-time Alerting:

  • 5+ failed logins in 5 minutes
  • Privilege escalation attempts
  • Access to sensitive files
  • Unusual API usage patterns
  • SQL injection patterns in logs

Metrics to Track:

  • Authentication failures rate
  • Average request duration
  • Error rates
  • Session counts

Database security beyond cfqueryparam:

  1. Least Privilege Database Accounts: Create separate database users per application environment with minimal required permissions (SELECT, INSERT, UPDATE only - no DROP, ALTER, or admin privileges)
  2. Stored Procedures: Use stored procedures for complex queries to encapsulate business logic in database layer
  3. Connection Encryption: Enable SSL/TLS for database connections in datasource configuration
  4. Connection Pooling: Configure appropriate pool sizes (max 50-100 connections) and connection limits
  5. Query Timeout: Set strict query timeouts (5-30 seconds) to prevent long-running attack queries
  6. Credential Management: Store database credentials in environment variables or external vault (HashiCorp Vault, AWS Secrets Manager), never in version control
  7. Connection String Security: Use encrypted connection strings where supported
  8. Database Firewall: Restrict database server to accept connections only from ColdFusion application servers
  9. Query Logging: Enable query logging in development and staging to detect inefficient or suspicious queries
  10. Regular Security Audits: Audit database permissions quarterly, review query patterns monthly

Even with cfqueryparam, use <cfquery result='local.result'> to scope result sets properly.

ColdFusion incident response procedures:

1. Detection: Implement monitoring alerts for security events

2. Classification: Define severity levels

  • P0 Critical: active breach, data exfiltration
  • P1 High: successful privilege escalation
  • P2 Medium: repeated failed attacks
  • P3 Low: scanning activity

3. Containment (for P0/P1):

  • Immediately isolate affected servers from network
  • Block attacker IPs at firewall
  • Disable compromised accounts
  • Take snapshots of affected systems before changes

4. Investigation:

  • Preserve logs
  • Review access logs for attacker activity timeline
  • Identify compromised data
  • Determine attack vector

5. Eradication:

  • Apply security patches
  • Remove backdoors/shells
  • Reset all credentials (database, CF admin, API keys)
  • Rebuild servers from clean images if necessary

6. Recovery:

  • Restore from clean backups if needed
  • Gradually restore service with enhanced monitoring
  • Implement additional controls to prevent recurrence

7. Communication: Notify stakeholders within 1 hour (P0), 4 hours (P1)

8. Post-Incident:

  • Conduct blameless post-mortem within 1 week
  • Update security controls and monitoring
  • Provide compliance notifications if required (GDPR breach notification within 72 hours)

9. Documentation: Maintain incident playbooks for common scenarios

10. Testing: Conduct incident response drills quarterly

Secure error handling and logging practices:

Configuration:

  1. Disable Robust Exception Information in CF Admin > Settings (set to OFF for production)
  2. Implement custom error handlers in Application.cfc - onError(), onMissingTemplate()
  3. Configure site-wide error handler in CF Admin to use custom template

What to Log (Server-Side):

  • Timestamp
  • Error type and message
  • Stack trace
  • User context (session.user_id)
  • Request context (url, form scope)
  • Server context (CF version, OS)

What Never to Expose:

  • Stack traces
  • Database structure
  • File paths
  • CF version
  • Internal IP addresses
  • SQL queries

User-Facing Messages:

  • Show generic messages: "An error occurred. Please contact support with reference ID: [UUID]"
  • Implement standardized error codes (ERR-AUTH-001, ERR-DB-002) for internal tracking

Additional Safeguards:

  • Use JSON format for structured logs to enable parsing
  • Rate limit error log writes to prevent DoS via log flooding
  • Alert on error rate thresholds (>100 errors/minute indicates attack or failure)

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