 Computerworld is New Zealand's only specialised information systems fortnightly.
Subscribe now for $97.50 (24 issues) and save more than 37% off the cover price!
 Get the latest news from Computerworld delivered via email.
Sign up now
 Subscribe to Computerworld's
RSS newsfeed here and get news stories as they break.
Microsoft is scrambling to patch an Internet Explorer flaw that was used to hack into Google's corporate networks last month.
The attack was used to hack into networks at 34 companies, including Adobe, security experts say. Typically such hacks involve several such attacks, but the IE bug is the only one definitively linked to the hacking incident, which security experts say originated in China.
In a security advisory released today, Microsoft says IE 6 users on Windows XP are most at risk from the flaw, but that other users could be affected by modified versions of the attack.
Microsoft says it is developing a fix, but it did not say when it expects to patch the issue. The company is slated to release its next set of security updates on February 9.
A Google spokesman confirms that the Internet Explorer attack was used against Google and that the company then reported the issue to Microsoft.
Google learned of the issue in December and, after discovering the server used to control the hacked computers, notified other companies affected by the hack. Apparently convinced that the infiltration was sanctioned by the Chinese government, Google has threatened to effectively pull its business out of China.
McAfee released a description of the attack, saying that the people hit with the attack were probably "targeted because they likely had access to valuable intellectual property".
Microsoft is condemning the attack, but says it had no indication that its corporate network or mail products were hit.
Although the IE attack has only been seen in "targeted and limited" incidents, Microsoft may release an emergency patch for the product, the company says.
The malicious code that hit Google "attacks IE6 on XP exclusively," but is thwarted by the Data Execution Prevention (DEP) technology used by Windows XP, says Dan Kaminsky, director of penetration testing with IOActive.
However, he adds, the bug could be leveraged in attacks that affected more recent versions of IE, running on Windows XP, he added. Vista and Windows 7 use a more advanced protection technology called ASLR (address space layout randomization) that makes exploiting this bug extremely difficult.
|
