CRLF Injection Overview

CRLF Injection is typically used in HTTP Response Splitting. In the HTTP specification there is a spec stating that the HTTP header is to be split from the data portion of the packet. This formatting split is defined by a carriage return and line feed, or called a \r\n.

Basically by injection a \r\n somewhere in the HTTP header you can split an HTTP packet into 2 different packets. 1 packet will have the malicious payload, while the other packet holds the valid information. HTTP Response Splitting is a vulnerability in the HTTP spec and as such a web server or proxy server will need to know how to handle and protect against these types of attacks and vulnerabilities.

HTTP Response Splitting can lead to the follow types of vulnerabilites.

* XSS or Cross Site Sripting vulnerabilites
* Proxy and web server cache poisoning
* Web site defacement
* Hijacking the client’s session
* Client web browser poisoning

Explore More

Physical Access is total Access

Hacking Your Computer – Physical Access is Total Access Table of Contents -Disclaimer -Introduction Part 1: Gaining Access -LiveCDs -Windows Option 1: Cracking the Password -Windows Option 2: Circumventing the

Read More

Nmap 5.50 latest Version out !

“Nmap (“Network Mapper”) is a free and open source utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network

Read More

More Trojan horse for Apple Mac! Is Mac more insecure than windows?

One more malware have been spotted for the Apple Mac machine. This time Trojan.iServices.B which gets into the system, open the backdoor in Mac machines and connect them to a

Read More