COMMAND
Word
SYSTEMS AFFECTED
Word
PROBLEM
Steven McLeod found following. When you open a Microsoft Word
document which contains macros, the default security level causes
MS Word to pop up a message box stating "This document contains
macros, which could be a virus" and allows the user to "Disable
macros" or "Enable macros".
Alternatively, if the user's macro security is set to the most
secure setting (requiring macros to be signed) all untrusted
macros will automatically be stripped out from the document.
This macro security feature of MS Word (in Office 2000 and Office
97) can be trivially bypassed by a malicious document, allowing
macro code in the document to be run when the document is opened
without prompting the user or notifying them that the document
contains macros. Furthermore, the macro will be run without user
knowledge even if the user's security setting is at the highest
setting (automatically strip out untrusted macros).
SOLUTION
Take a look at:
http://www.microsoft.com/technet/security/bulletin/MS01-034.asp