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Unpatched Microsoft Security Hole Being Exploited Online
Posted by Pile
(13386 views)      [E-Mail link]
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| Reason # 45,234,101 to switch to Firefox: Yet another major vulnerability in Windows which affects Internet Explorer and Outlook. Users can become infected by merely visiting the wrong web site -- no interaction necessary, or under Outlook, viewing a message. Beware! |
Secunia reports a vulnerability in Windows Animated Cursor Handling. According to the linked article, the rating is "extremely critical".
Microsoft has put up their own advisory on the subject, confirming this is a vulnerability that affects Windows 2000, XP, 2003 and Vista. The exploit has already been used in the wild. From the Secunia page: The vulnerability is caused due to an unspecified error in the handling of animated cursors and can e.g. be exploited by tricking a user into visiting a malicious website using Internet Explorer or opening a malicious e-mail message. Successful exploitation allows execution of arbitrary code.
The Microsoft advisory:
Microsoft Security Advisory (935423)
Vulnerability in Windows Animated Cursor Handling
Published: March 29, 2007
Microsoft is investigating new public reports of attacks exploiting a vulnerability in the way Microsoft Windows handles animated cursor (.ani) files. In order for this attack to be carried out, a user must either visit a Web site that contains a Web page that is used to exploit the vulnerability or view a specially crafted e-mail message or email attachment sent to them by an attacker.
As a best practice, users should always exercise extreme caution when opening or viewing unsolicited emails and email attachments from both known and unknown sources.Microsoft has added detection to the Windows Live OneCare safety scanner for up-to-date removal of malicious software that attempts to exploit this vulnerability.Microsoft intends to actively share information with Microsoft Security Response Alliance partners so that their detection can be up to date to detect and remove attacks.Customers in the U.S. and Canada who believe they are affected can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.
Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This will include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.
Microsoft is actively monitoring this situation to keep customers informed and to provide customer guidance as necessary. |
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