Another M$ security issue? This is getting ridiculous.
Administrators of e-mail systems based on Microsoft's Exchange might have spammers using their servers to send unsolicited bulk e-mail under their noses, a consultant warned this week.
Aaron Greenspan, a Harvard University junior and president ofconsulting company Think Computer, published a white paper Thursday detailing the problem, discovered when a client's server was found to be sending spam. Greenspan's research concluded that Exchange 5.5 and 2000 can be used by spammers to send anonymous e-mail. He says even though software Microsoft provides on its site certifies that the server is secure, it's not.
"If the guest account is enabled (on Exchange 5.5 and 2000), even if your login fails, you can send mail, because the guest account is there as a catchall," he said. "Even if you think you've done everything (to secure the server), you are still open to spammers."
Source:
C|NET