Securing Your Website from Hackers: Stop Common Attacks

Securing Your Website from Hackers: Stop Common Attacks

The Cost of Cyber-Attacks: Real-World Cases

In 2023, Hotel Booking Management v1.0 suffered a critical SQL injection flaw (CVE-2023-49989) allowing attackers to manipulate databases without authentication 1 . Similarly, Hoteldruid v3.0.5 had a SQLi vulnerability via n_utente_agg (CVE-2023-43373), risking sensitive data 2 8.


The African Cybersecurity Threat Landscape

Africa faces escalating cyber threats, with Tanzania emerging as a regional leader in cyber-security. The country achieved a Tier 1 ranking in the 2024 Global Cybersecurity Index (GCI) for robust legal frameworks and cooperation 3 4. However, challenges persist:

  • DDoS attacks surged in Tanzania, targeting telecom and transportation sectors 5.

1. Common Web Vulnerabilities

SQL Injection

  • Impact: Attackers exploit inputs like id or n_utente_agg to extract data or execute commands. Example: http://{{IP}}/update.php?id=1 AND (SELECT SLEEP(20)) 2.
  • Prevention: Use parameterized queries (e.g., cursor.execute("SELECT * FROM users WHERE username = ?", (user_input,))) .

XSS & CSRF

  • XSS: Sanitize inputs with DOMPurify and enforce CSP headers 6.
  • CSRF: Implement tokens (e.g., Django’s {% csrf_token %}) and SameSite cookies.

2. Best Practices (Verified Tools & Configs)

SSL Certificates

Use Let’s Encrypt for free HTTPS. Example Nginx config:


add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
server_tokens off;  # Hide server version

Web Server Hardening

Secure headers for Nginx:

add_header X-Content-Type-Options "nosniff";
add_header X-Frame-Options "SAMEORIGIN";
add_header Content-Security-Policy "default-src 'self'"; 

3. Tools & Resources

  • OWASP ZAP: Align with OWASP guidelines to scan for SQLi/XSS 7 6.
  • WAFs: Deploy Cloudflare to block DDoS (e.g., Tanzania’s top attack vectors: TCP SYN/ACK Amplification) 5.
  • Backups: Use rsync or BorgBackup for recovery post-attack.