IE zero-day danger growing

Posted by   Virus Bulletin on   Dec 16, 2008

Large numbers of users vulnerable to unpatched problem.

The as-yet unpatched vulnerability in Microsoft's Internet Explorer browser, reported last week and coinciding with the release of the monthly 'Patch Tuesday' security updates, is becoming more serious by the day as more and more infected websites appear to be attempting to exploit the flaw to gain access to visitors' systems.

The vulnerability was thought only to affect IE7 when first discovered, and was being exploited only by limited numbers of targeted trojans. Since then, attacks via the vulnerability have been shown to work on a wide range of Windows and IE variants, and have been widely seeded to both malicious websites and legitimate sites that have been compromised to display malicious content.

A blog post issued by Microsoft on Saturday claimed a 50% rise in attacks spotted in the previous 24 hours, with as many as 0.2% of all web users exposed to the threat. The same day, Trend Micro researchers reckoned that some 6,000 web pages were playing host to exploits targeting the vulnerability. Numbers are thought to have climbed rapidly since then.

Technical details of the vulnerability, including affected systems and possible workarounds, are in the updated advisory from Microsoft, here, or in vulnerability reporting systems at Secunia, US-CERT and Sophos. More coverage is in blog posts from F-Secure, Sophos here and here, from SANS here, and in the Washington Post here.

Posted on 16 December 2008 by Virus Bulletin

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

New paper: Behind the scenes of GandCrab's operation

The GandCrab ransomware regularly updated itself to newer versions to stay ahead of decryptors released by security researchers, and regularly included taunts, jokes and references to security organizations in its code. In a new paper, the AhnLab…

VB2019 paper: King of the hill: nation-state counterintelligence for victim deconfliction

At VB2019 Juan Andres Guerrero-Saade looked at nation-state actors using threat intelligence for victim deconfliction. Today we publish both his paper and the recording of his presentation.

The VB2020 call for papers - how it works

With the VB2020 Call for Papers now open, we explain how the selection procedure works, which may help you during your abstract submission.

VB2019 presentation: Targeted attacks through ISPs

In 2019 we saw a rise in the number of targeted malware infections spread via ISPs and service providers. In a last-minute paper presented at VB2019 in London, Kaspersky researcher Denis Legezo discussed the details of a number of such cases. Today…

VB2019 presentation: A deep dive into iPhone exploit chains

In a last-minute presentation at VB2019 in London, John Bambenek of the University of Illinois at Urbana-Champaign discussed details of campaigns that used advanced iOS and Android exploit chains against China’s Uighur minority. Today we release the…

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.