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AppSensor DetectionPoint CIE4
From OWASP
Revision as of 19:16, 4 June 2010 by John Melton (talk | contribs)
Here is some sample code that can be used to detect CIE4. If you know that a CR/LF is never acceptable in your app, you could put this in a filter, and call it for all incoming data (request headers, cookie data, request parameters, etc)
String myInputParameter = ...; //the execution of this line will create an exception if an attack is found boolean isParamSafe = AttackDetectorUtils.verifyCarriageReturnOrLineFeedDoesNotExist(myInputParameter); if (! isParamSafe) { notify user ... ??? }