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What is Web cache Deception attack?
WCD, first documented in 2017 by security researcher Omer Gil, is a type of attack that forces caching servers to store and reveal sensitive user information. …
What is cache poisoning attack?
Domain Name Server (DNS) spoofing (a.k.a. DNS cache poisoning) is an attack in which altered DNS records are used to redirect online traffic to a fraudulent website that resembles its intended destination.
What is cache poisoning attack what is the importance of this attack?
Also known as DNS spoofing, DNS cache poisoning is an attack designed to locate and then exploit vulnerabilities that exist in a DNS, or domain name system, in order to draw organic traffic away from a legitimate server and over to a fake one.
What is cache deception armor?
The new Cache Deception Armor Page Rule protects customers from Web Cache Deception attacks while still allowing static assets to be cached. It verifies that the URL’s extension matches the returned Content-Type . This new Page Rule depends upon Origin Cache Control.
What is origin cache control?
“origin cache-control” is the Cache-Control header sent from your Origin server. It controls what assets Cloudflare, and the browser, will cache.
How many websites are affected by cache deception?
Almost two years after first being documented, Web Cache Deception attacks are still a major issue, and they still impact many popular websites. New academic research published this month reveals that 25 of the Alexa Top 5,000 websites are still impacted by Web Cache Deception (WCD) attacks.
How are hackers taking advantage of web caches?
In 2017, Israeli security researcher Omer Gil discovered a technique known as the web cache deception attack, which takes advantage of the way that servers create cached pages. It was used to target several household names online, including the eCommerce and online payments platform PayPal.
How are attackers able to access our cache?
Then the attacker can visit the same URL themselves and their request will be served from our cache, exposing your user’s sensitive content.
Why is a cache poisoning attack possible in OWASP?
A Cache Poisoning attack is possible because of HTTP Response Splitting and flaws in the web application. It is crucial from the attacker’s point of view that the application allows for filling the header field with more than one header using CR (Carriage Return) and LF (Line Feed) characters.