dns-rebinding-attacks

DNS rebinding bypasses same-origin policy by manipulating DNS resolutions, specifically TTL manipulation, causing the victim's browser to access internal services. It exploits client-side DNS behavior and browser cache policies to make subsequent requests to private network endpoints.

The best way to test DNS rebinding variants is simulating Classic HTTP, WebSocket, TOCTOU, and multiple A records attacks in authorized environments. This evaluates SOP bypass efficacy and internal service exposure by loading controlled pages that trigger DNS resolution.

Yes, you can evaluate host header validation and private network access controls as defense considerations. Testing these mechanisms determines their efficacy in preventing server-side requests originating from manipulated client-side DNS behavior during authorized penetration testing.

Perform DNS rebinding penetration testing safely by operating within authorized environments, loading a controlled page to trigger DNS resolution, and observing subsequent internal service requests after rebinding without unauthorized access to the victim's network.

Consider DNS cache policies when evaluating client-side DNS behavior and TTL manipulation techniques to defeat browser caching. Understanding these policies is required when auditing SOP protections and testing internal service exposure against DNS rebinding variants.