Project Objective

The primary objective of this project was to secure the application at both the application and infrastructure levels by implementing industry best practices, without impacting user experience or existing functionality.

Key Security Challenges Identified

1. Improper Error Handling

The application was exposing raw server and database error messages, revealing sensitive internal details.

• Lack of centralized error handling
• Technical errors visible to end users
• No structured backend logging mechanism

2. Clickjacking Vulnerability

The website could be embedded inside external iframes, making it vulnerable to deceptive UI-based attacks.

3. Missing Critical Security Headers

Essential HTTP security headers were not configured, leaving the application exposed to XSS, MIME sniffing, and protocol downgrade attacks.

4. Unwanted Open Ports

Multiple unused server ports were open, increasing the attack surface and infrastructure risk.

CnEL India’s Strategic Solution

Robust Error Handling & Secure Logging

• Implemented centralized backend exception handling
• Displayed only user-friendly error messages on the frontend
• Logged detailed technical errors securely in backend logs for monitoring and debugging

Clickjacking Protection

• Configured X-Frame-Options: DENY
• Implemented Content-Security-Policy: frame-ancestors 'none'
• Ensured protection without impacting application behavior

Advanced Security Header Configuration

• Implemented Content Security Policy (CSP)
• Enabled HTTP Strict Transport Security (HSTS)
• Added X-Content-Type-Options: nosniff
• Configured X-XSS-Protection
• Carefully tested frontend scripts to ensure CSP compatibility

Infrastructure & Firewall Hardening

• Audited all open server ports
• Closed unused and risky ports at the firewall level
• Restricted access to essential ports only (80 & 443)

Why CnEL India Was the Best Choice

• Deep expertise in application security and server hardening
• End-to-end approach covering backend, frontend, and infrastructure
• Security improvements without disrupting business operations
• Clear communication, documentation, and post-deployment validation
• Proactive risk assessment aligned with industry best practices

Project Outcome

The application is now significantly more secure, resilient, and compliant with modern security standards. All critical vulnerabilities were mitigated, the attack surface was reduced, and user trust was enhanced through a safer and more professional experience.

Client Review

“CnEL India demonstrated exceptional security expertise and attention to detail. They didn’t just fix issues—they explained risks, implemented best practices, and ensured nothing broke in the process. Our application is now secure, stable, and ready to scale with confidence.”

— Client Security & Technology Lead

Conclusion

This project highlights how CnEL India delivers more than just fixes—we deliver secure, scalable, and future-ready solutions. When it comes to safeguarding applications and infrastructure, CnEL India stands as a trusted technology partner.