mailing list archives
Re: Robust XML validation
From: Tim <tim-security () sentinelchicken org>
Date: Thu, 13 Dec 2012 08:19:06 -0800
Validating against trusted schemas/DTDs would not be sufficient in my
opinion. For example, such validations are not effective against the
billion laughs attack (http://en.wikipedia.org/wiki/Billion_laughs).
But... isn't the point that you'd never accept a DTD or schema from an
untrusted source? That is, never even bother to parse it and
arguably, reject documents from users that contain them.