Microsoft Outlook 8.5 and earlier, and Outlook Express 5 and earlier,
with the "Automatically put people I reply to in my address book"
option enabled, do not notify the user when the "Reply-To" address is
different than the "From" address, which could allow an untrusted
remote attacker to spoof legitimate addresses and intercept email from
the client that is intended for another user.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20010605 SECURITY.NNOV: Outlook Express address book spoofing
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