Microsoft patches IE, admits it knew of bug last August
Fixes flaw used to attack Google, others; Israeli researchers sounded warning on Aug. 26, 2009
Computerworld - As Microsoft patched the Internet Explorer (IE) vulnerability that was used to break into Google's network, it also acknowledged that it had known of the bug since August 2009, when an Israeli security company reported the flaw.
"As part of [our] investigation, we also determined that the vulnerability was the same as a vulnerability responsibly reported to us and confirmed in early September," said Jerry Bryant, a senior program manager with the Microsoft Security Response Center, on the MSRC blog today.
Eyal Gruner, one of BugSec's chief technical experts, reported the vulnerability to Microsoft on Aug. 26, not in September as Microsoft indicated. And he was critical of Microsoft for taking this long to release a patch. "I think yes, it took too long," he said. "But Microsoft is a big organization and we don't know how much time it takes them. We asked them why it was taking such a long time, and they said it was because of the testing they had to do."
BugSec, based in Rishon LeZion, Israel, specializes in security solutions for major financial organizations in the country.
Andrew Storms, director of security operations at nCircle Network Security, said the fact that Microsoft knew of the vulnerability months before it crafted a patch -- months before Chinese criminals used the flaw -- shouldn't come as a shock.
"It's pretty par for the course, really," said Storms. "We know that patches sit for a good month or so in QA [quality assurance] at Microsoft. So if it was reported to Microsoft in September, it might not have been added to the [patch] cycle until October, and the code not written until November. A February release isn't crazy then."
Storms refused to use hindsight to say that Microsoft was tardy to the party. "Unless you have real evidence that it's being used, you can't take that into account when you prioritize patches," he argued. "You take into account the skill level necessary to exploit it. But if it's responsibly disclosed, you have to assume that it's not going to release [publicly]. And without partners saying that they're seeing signs of it being exploited, Microsoft probably thought they could just roll it into their normal IE release cycle."
Microsoft last patched IE in December 2009, and on average, updated its browser every two months.
It didn't surprise Gruner that others found the vulnerability, then decided to use it maliciously. "We found this vulnerability very easily," said Gruner, "and we didn't think it would be hard for others to find." BugSec spent about two weeks researching IE before it discovered the flaw, Gruner added.
Web giants attacked
- White House orders security review in wake of WikiLeaks disclosure
- Leaked U.S. document links China to Google attack
- Update: Researchers track cyber-espionage ring to China
- Google, China now playing cat and mouse?
- McAfee: 'Amateur' malware not used in Google attacks
- Military warns of 'increasingly active' cyber-threat from China
- China: Google 'totally wrong' to stop censoring
- Update: Google stops censoring in China
- Google's China ad partners wait in 'incomparable pain'
- Google may soon leave China, reports say
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