This documentation is for WSO2 Identity Server 5.1.0 . View documentation for the latest release.

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Carraige Return Line Feed (CRLF) attacks are also known as HTTP Response Splitting. The carriage return can be represented as CR, ASCII 13 10 or /r which feeds out one line, and line feed as LF, ASCII 10 13 or /n which starts a new line. If an attacker injects a malicious CRLF sequence into an HTTP stream when a user manages to submit a CRLF into an application, the attacker will gain malicious control on the way a web application functions.

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The CRLF Filter sanitizes CR & LF characters in response headers and appenders to sanitize them in logging messages.

Configuring the CSRF Filter

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