Only changed a little bit easy to lift a Word document password protected-vulnerability warning-the black bar safety net

2006-06-23T00:00:00
ID MYHACK58:6220069935
Type myhack58
Reporter 佚名
Modified 2006-06-23T00:00:00

Description

Word's password protection function is relatively strong, if one accidentally forgot Word password? How to modify the encrypted Word document?

Word document protection is divided into open and modify the protection for the former online there have been many more Mature approach. Such as the“three-step”is a very good choice. But for the latter--the Word modify protection, the“three-step”fails. Recently the author in the“three-step”on the basis of the summary of a more delicate way, just a little changes, you can lift Word document protection.

First, the Word document is saved as a web page. The specific operation is in the“File”menu click on“Save As web page”(i.e.:file - >Save As web page).

The second step will be just a memory of a good web file with“Notepad”to open.

! Only changed a little bit easy to lift a Word document password protected

The Notepad program

The third step in a document, find <w:DocumentProtection></w:DocumentProtection> socket, the socket between the content is a Word document the actual protection of the content. As we can see, I unprotect the file is named the on the further strengthening of entry of ships ballast water Guard regulation notice of Word document, which content protection is forms(see Figure below).

! Only changed a little bit easy to lift a Word document password protected

Word document

We simply will statement Forms, changes to Forms, i.e., the attribute“DocumentProtection”preceded by prefix“un”becomes“unDocumentProtection”from the original“document protection”attribute is changed to the current“non-document protection”attribute(see the figure below).

! Only changed a little bit easy to lift a Word document password protected

Non-document protection

The Notepad File Save and exit, use Word to open the just saved web page can be, this time you will find that the original protected Word file, it has now been unprotected, and can be arbitrarily edited.

! Only changed a little bit easy to lift a Word document password protected

Has not protected