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【Vista之家译】微软披露并修补Vista侧边栏小工具漏洞
微软公司在本星期二（8月14）日，发布了windows vista产品的几个补丁，这是微软第一次给Sidebar侧边栏上面的小应用工具发布补丁。这也许，意味着下一代的漏洞入口。
这三个侧边栏小工具（Sidebar Widgets）都是微软Vista里面的捆绑产品，分别是RSS、联系人和天气这三个小工具。RSS里面可能会包含一些恶意的链接，天气小工具则可能让攻击者运行代码，这些，都在此次补丁里面做了更新。
这一切，或许意味着，侧边栏，成了攻击者和病毒制造者的新温床。
Vista之家（www.vista123.com）特别提供英文原文如下：
Microsoft Reveals First Vista Gadget Bugs
Microsoft patched several Windows Vista gadgets this week, the first time it's had to fix the small applications.
Gregg Keizer, Computerworld
Wednesday, August 15, 2007 2:00 PM PDT
Microsoft Corp. Tuesday patched several Windows Vista gadgets, the first time it's had to fix the small applications, prompting one researcher to mark the date as the real "arrival of the next-generation of vulnerabilities."
The three bugs detailed in one of the nine bulletins issued Tuesday could let attackers inject their own malicious code into a victim's Vista-powered PC, said Microsoft. Three of Vista's bundled gadgets -- the small applications that sit on the desktop, usually pulling information from other programs or off the Web -- are flawed: the RSS, contacts and weather gadgets. The vulnerabilities in the RSS and weather gadgets are particularly dangerous, since both are enabled by default in a standard Vista installation.
"If a user subscribed to a malicious RSS feed in the Feed Headlines Gadget or added a malicious contacts file in the Contacts Gadget or a user clicked on a malicious link in the Weather Gadget an attacker could potentially run code on the system," Microsoft reported in the bulletin.
Although the bugs can result in remote code executing on the target machine -- a characteristic that usually pegs the vulnerability as "critical" -- Microsoft ranked them one step lower, as "important," in part because Vista's revised account rights settings should deflect the worst kind of damage.
Most third-party researchers, however, fixed attention not so much on the bugs themselves but on the fact that they lived inside Vista's gadgets.
"Six months ago, around the time of Vista [release] we started talking about the new types of vulnerabilities we might see," said Amol Sarwate, the manager of Qualys' vulnerability research lab. "These vulnerabilities are a testament that this next generation has finally arrived."
Tyler Reguly, a Toronto-based researcher with nCircle Network Security Inc., also tapped the gadget vulnerabilities as among the most interesting of Tuesday. "There was actually an article almost two years ago quoting a researcher at Trend Micro who said that RSS would be the botnets' next stomping ground," said Reguly in a posting to the nCircle blog. "This vulnerability could be proof of that. When you subscribe to an RSS feed you are implicitly trusting that feed. This vulnerability takes advantage of that trust relationship, inserting malicious code into something that you are 'blindly' trusting."
Like Sarwate, Reguly thinks that the RSS gadget bug is a harbinger of bad things to come. "It's a scary thought. This isn't like clicking a link in Internet Explorer...this action has been pre-approved. I'm interested to see where this will lead us."
VeriSign iDefense, which originally reported the RSS bug to Microsoft in March, also spelled out how a hacker could wreak the most havoc with the vulnerability. "If an attacker can find some way to inject data into a trusted feed then they will be able to exploit any subscribers to the feed," the company said in its own advisory, also published Tuesday. iDefense credited Aviv Raff, a security researcher who works for Finjan Inc. and is noted for rooting out bugs in Web browsers. In the past, Raff has disclosed vulnerabilities in Apple Inc.'s Safari and Mozilla Corp.'s Firefox.
But while these patches are the first to fix Microsoft's tools, flawed gadgets aren't new. Late last month, for example, Yahoo Widgets, a competing gadget platform, was tagged with a critical vulnerability in an associated ActiveX control.
Microsoft's gadget patches can be grabbed via one of the developer's update services.
Vista之家（www.vista123.com），冲锋 Windows Vista最前沿
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