Microsoft Warns Users about Vulnerability in the ActiveX Control

Microsoft Logo Microsoft has issued a Security Advisory warning users about vulnerability in the ActiveX control for the Snapshot Viewer for Microsoft Access. The Snapshot Viewer enables users to view an Access report snapshot without having the standard or run-time versions of Microsoft Office Access.

“An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user.” wrote Microsoft in its Security Advisory.

Besides, Microsoft has said that the vulnerability could affect only he vulnerability only affects the ActiveX control for the Snapshot Viewer for Microsoft Office Access 2000, Microsoft Office Access 2002, and Microsoft Office Access 2003.

According to Microsoft, mitigating factors are:

  • In a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail or Instant Messenger message that takes users to the attacker’s Web site.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • By default, Internet Explorer on Windows Server 2003 and Windows Server 2008 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that you have not added to the Internet Explorer Trusted sites zone.
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