Vulnerabilities / Threats
3/30/2010
01:51 PM
Connect Directly
Google+
LinkedIn
Twitter
RSS
E-Mail
50%
50%

Microsoft Releases Emergency Internet Explorer Patch

The patch addresses 10 vulnerabilities in the Web browser; Internet Explorer 6 and 7 users are most at risk.

Microsoft on Tuesday released an emergency, or out-of-band, patch for 10 vulnerabilities in Internet Explorer.

"The Internet Explorer team accelerated testing of this update due to the growing attacks against the publicly disclosed vulnerability (CVE-2010-0806), and the update has reached the appropriate quality bar for distribution to customers," said Microsoft Security Response group manager Jerry Bryant in a blog post. "Releasing the update early provides Internet Explorer 6 and 7 customers protection against the active attacks and provides users of all versions of Internet Explorer protection against nine other vulnerabilities."

Symantec security researcher Joshua Talbot said in an e-mail that the catalyst for the patch is the increased activity related to the iepeers.dll zero-day vulnerability that surfaced March 9. "Symantec has also observed a recent spike in attempted infections via this security hole," he said. "The typical attempted infection process seems to involve compromising a legitimate Web site then inserting an iframe which redirects users to a malicious site."

Internet Explorer 6 and 7 users are at risk from the iepeers.dll vulnerability; Internet Explorer 8 users are not.

However, three of the other 10 vulnerabilities addressed by the out-of-band patch do affect Internet Explorer 8. Even so, Microsoft is urging customers using Internet Explorer 6 and 7 to upgrade to version 8.

Talbot says that while exploit code for the vulnerabilities other than iepeers.dll isn't yet available, he believes many of the holes will be "trivially exploitable under certain circumstances" and advises patching as soon as possible.

Bryant says that Microsoft cannot immediately provide information about whether the patch addresses the vulnerability used to hack Internet Explorer 8 in the "pwn2own" competition at the CanSecWest security conference last week.

The last time that Microsoft released an emergency patch for Internet Explorer was in January, following news that a vulnerability in Internet Explorer 6 had been used in the "Operation Aurora" cyber attack on Google and dozens of other companies.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Dark Reading Tech Digest, Dec. 19, 2014
Software-defined networking can be a net plus for security. The key: Work with the network team to implement gradually, test as you go, and take the opportunity to overhaul your security strategy.
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-8142
Published: 2014-12-20
Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate keys w...

CVE-2013-4440
Published: 2014-12-19
Password Generator (aka Pwgen) before 2.07 generates weak non-tty passwords, which makes it easier for context-dependent attackers to guess the password via a brute-force attack.

CVE-2013-4442
Published: 2014-12-19
Password Generator (aka Pwgen) before 2.07 uses weak pseudo generated numbers when /dev/urandom is unavailable, which makes it easier for context-dependent attackers to guess the numbers.

CVE-2013-7401
Published: 2014-12-19
The parse_request function in request.c in c-icap 0.2.x allows remote attackers to cause a denial of service (crash) via a URI without a " " or "?" character in an ICAP request, as demonstrated by use of the OPTIONS method.

CVE-2014-2026
Published: 2014-12-19
Cross-site scripting (XSS) vulnerability in the search functionality in United Planet Intrexx Professional before 5.2 Online Update 0905 and 6.x before 6.0 Online Update 10 allows remote attackers to inject arbitrary web script or HTML via the request parameter.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Join us Wednesday, Dec. 17 at 1 p.m. Eastern Time to hear what employers are really looking for in a chief information security officer -- it may not be what you think.