Learn how cache key injection works, why it leads to large-scale cache poisoning, and the real-world risks for modern web applications.
Press enter or click to view image in full size
Disclaimer:
The techniques described in this document are intended solely for ethical use and educational purposes. Unauthorized use of these methods outside approved environments is strictly prohibited, as it is illegal, unethical, and may lead to severe consequences.It is crucial to act responsibly, comply with all applicable laws, and adhere to established ethical guidelines. Any activity that exploits security vulnerabilities or compromises the safety, privacy, or integrity of others is strictly forbidden.
Table of Contents
Summary of the Vulnerability
Cache key injection is a subtle but powerful web application flaw that arises when unvalidated input is incorporated into the cache key used by a reverse proxy, CDN, or other caching layer. In this lab scenario, the site’s caching mechanism mistakenly includes attacker-supplied header data (via the…