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Message-ID: <1382552375.25172.YahooMailNeo@web171704.mail.ir2.yahoo.com>
Date: Wed, 23 Oct 2013 19:19:35 +0100 (BST)
From: Hurgel Bumpf <l0rd_lunatic@...oo.com>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Microsoft Word Protect Document Password Feature
Hi List,
i had to unlock a password protected word template today. It was protected against modification (not the access protection)
So i thought i might share these simple steps to unlock such documents.
A feature of word documents is, that they are some kind of zip files with a different extenstion.
When you unzip these files you get a lot of folders/files likeĀ
_rels
customXml
docProps
word <-- the main files
in the folder "word" you will find a settings.xml, when you open it look for the tag <w:documentProtection
It will look similar to this:
<w:documentProtection w:edit="forms" w:enforcement="1" w:cryptProviderType="rsaFull" w:cryptAlgorithmClass="hash" w:cryptAlgorithmType="typeAny" w:cryptAlgorithmSid="4" w:cryptSpinCount="100000" w:hash="dawdadaw4324aw2dascas=" w:salt="sdf+sdfdsf/WA=="/>
delete that tag. Replace the settings.xml in the zip. save and rename to .dotx/.doc/.whatever again.
That's it, the document is unlocked.
I mean, they are even using salted hashes and all you need to do is delete the line. Like its 1998. Impressive.
Have a nice day,
Conan the Bavarian
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