[Esapi-user] ESAPI Logging bad data

August Detlefsen augustd at codemagi.com
Thu May 30 23:46:39 UTC 2013

If an attacker is able to insert a newline into your log file, then yes,
that is pretty much the definition of log forging...

On Thu, May 30, 2013 at 3:27 PM, Tony M <dev at cfreak.net> wrote:

> Hello,
> I am using ESAPI in one of my application. It seems that ESAPI is logging
> bad data:
> WARNING: [SECURITY FAILURE] Invalid input: context=validate_filename,
> type(FileName)=^[[email protected]#$%^&{}\[\]()_+\-=,.~'` ]{1,255}$, input=
> in the log file. Isn't that subject to log forging? I know that showing
> the data in the log has benefit. Any advice in solving this issue?
> Thanks,
> Tony
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