HTTP header injection: Difference between revisions

Revision as of 13:06, 23 January 2015

Revision as of 21:51, 23 January 2015

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{{HTTP}}

'''HTTP header injection''' is a general class of [[web application]] [[security vulnerability]] which occurs when [[Hypertext Transfer Protocol]] (HTTP) [[list of HTTP headers|headers]] are dynamically generated based on user input. Header injection in HTTP responses can allow for [[HTTP response splitting]] (also known as CRLF – Carriage Return Line Feed), [[Session fixation]] via the Set-Cookie header, [[cross-site scripting]] (XSS), and malicious redirect attacks via the ___location header. HTTP header injection is a relatively new area for web-based attacks, and has primarily been pioneered by Amit Klein in his work on request/response smuggling/splitting. Vulnerabilities due to HTTP header injections such as CRLF are no longer feasible due to the fact that multiple header requests are not possible.

== Sources ==