🔐 CSRF: The Silent Web Threat
Saurabh Agrawal
SOC | SIEM | SOAR | Sentinel | MDE | XDR | Splunk | Akamai | CloudSEK | Threat Hunting | Incident Response | Threat Intelligence | NSE 1 | NSE 2
Let’s talk about a quiet but dangerous web security issue: CSRF (Cross-Site Request Forgery).
Imagine a user is logged into MyCompany, an e-commerce site. They visit a malicious blog, and behind the scenes, their browser sends a request like:
https://www.mycompany.com/update-address?address=123+Hacker+Street
Since their session cookie is active, the server accepts the request and the user's address gets silently changed. That’s CSRF in action.
⚠️ Why It Happens
• Using GET for actions like updating info
• No CSRF token validation
• Cookies sent by browser automatically
• SameSite not set
✅ How to Prevent It
• Use POST for data-changing requests
• Include and validate CSRF tokens
• Set cookies with: SameSite=Strict; Secure; HttpOnly
💡 Quick Takeaway CSRF attacks are easy to miss but easy to stop if you build securely. Small steps, big protection.
#CyberSecurity #WebSecurity #CSRF #AppSec #OWASP