品理博客

周四，微软发布了重要的 Internet Explorer 的累计补丁，总共修复了8个漏洞，其中包括导致Google在内的多家公司被攻击的漏洞。

本次安全更新涉及IE5/6/7/8四个版本，问题的严重性包括可以允许远程执行代码，安装该更新后可以消除一系列来自IE的漏洞，并可以减少受攻击的风险，微软建议客户尽快部署防范已知攻击的安全更新。与此同时，趋势科技和赛门铁克公司周四表示，他们已找到新的恶意软件样本，利用IE漏洞进行攻击。

Microsoft Security Bulletin MS10-002 – Critical
http://www.microsoft.com/technet/security/bulletin/ms10-002.mspx
Cumulative Security Update for Internet Explorer (978207)
Published: January 21, 2010

Version: 1.0
General Information
Executive Summary

This security update resolves seven privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Explorer. The more severe vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. 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.

This security update is rated Critical for all supported releases of Internet Explorer: Internet Explorer 5.01, Internet Explorer 6, Internet Explorer 6 Service Pack 1, Internet Explorer 7, and Internet Explorer 8 (except Internet Explorer 6 for supported editions of Windows Server 2003). For Internet Explorer 6 for supported editions of Windows Server 2003 as listed, this update is rated Moderate. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses these vulnerabilities by modifying the way that Internet Explorer handles objects in memory, validates input parameters, and filters HTML attributes. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection under the next section, Vulnerability Information.

This security update also addresses the vulnerability first described in Microsoft Security Advisory 979352.

Recommendation. The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. None

微软就DOS模拟器服务所引起的32位操作系统漏洞发布官方警告

微软本周三晚上就32位版本Windows操作系统中所存在的一处漏洞发布了用户警告,这种漏洞可令别有用心者取得管理员权限,进行安装程序,修改系统数 据或创建系统帐户等操作。

该漏洞所影响的32位操作系统有 Windows 7 / Vista / XP / 2000 / Server 2003 / Server 2008， 不过64位操作系统则不存在此类漏洞。

微软负责安全技术的高管 Jerry Bryant 称：“我们目前还没有发现任何针对该漏洞的攻击行为，因此我们认为该漏洞目前对微软的用户而言威胁还相当有限。”

他表示：要执行针对该漏洞的攻击，攻击者需要拥有合法的登录帐号，并需要在本地登录系统，一旦登录系统之后，便可以发动有关的攻击，取得系统管理权。

微软称目前有关该漏洞的修复补丁还在制作过程中，并建议用户暂时关闭 Windows Virtual DOS Machine（NTVDM）DOS 模拟器服务。

不过一天以前，谷歌的安全专家  Tavis Ormandy 便已经在自己的博客上公开了这条漏洞，他表示自己早在去年6月份便就此漏洞通知了微软。