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Re^2: security: making sure graphics uploaded by users are safe

by boardhead (Novice)
on Oct 01, 2009 at 16:29 UTC ( #798677=note: print w/replies, xml ) Need Help??


in reply to Re: security: making sure graphics uploaded by users are safe
in thread security: making sure graphics uploaded by users are safe

ExifTool is not designed to detect security problems in images, so I don't think that exiftool warnings are very indicative of a problem like this. Instead of rejecting any image with a warning, I would recommend removing all metadata from the image with "exiftool -all=". This should also remove any warnings associated with the metadata. If warnings or errors persist after cleaning an image like this, then it would be reasonable to reject the image.

- Phil Harvey

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