MS patches Exchange 2000 email spy bug
Outlook Web Access flaw
Crackers could ferret their way into a victim's email by exploiting the way that Exchange 2000 allows users to access their in-boxes over the Web.
Microsoft has issued a patch; the flaw revolves around the interaction between Outlook Web Access and Internet Explorer in handling message attachments.
If an attachment contains HTML code including script, the script will be executed when the attachment is opened, regardless of the attachment type. In the hands of even a modestly skilled attacker this could be used to create maliciously constructed emails designed to break into user's In-boxes, as Microsoft states.
In a security notice on the issue, Microsoft said: "If the user opened a [maliciously constructed] attachment in Outlook Web Access, the script would execute and could take action against the user's mailbox as if it were the user, including, under certain circumstances, manipulation of messages or folders."
This attack relies on the use of Outlook Web Access to read emails, emails opened locally aren't subject to the vulnerability, the flaw could be a relatively easy way to try a spot of industrial espionage - or worse - so it should be addressed sooner rather than later. ®
Win2K SP2 and broken Exchange2K servers
E-mail wiretapping used to spy on corporate communications
Lookout for Internet Explorer bugs
Reports of death of email viruses greatly exaggerated?
Rise in viruses within emails outpacing growth of email
Anna Kournikova bug drops harmlessly onto the Net
Users haven't learned any lessons from the Love Bug