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Vulnerability in IE could allow Remote Code Execution – Will XP be patched by Microsoft?

Posted on by Compudyne Admin

FRSecure, Compudyne’s security partner, specializes in full-service information security consulting and is dedicated to security education, awareness, application, and improvement.  They assist clients with understanding, designing, implementing, and managing best-in-class information security solutions.

FRSecure recently posted the following information regarding the latest vulnerability identified in Internet Explorer:

Vulnerability in IE could allow Remote Code Execution – Will XP be patched by Microsoft?By convincing a user to view a specially crafted HTML document, an attacker may be able to execute malicious code. Microsoft is aware of limited, targeted attacks that attempt to exploit this vulnerability in Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, Internet Explorer 10, and Internet Explorer 11.

The bug affects Internet Explorer browsers across multiple Microsoft operating systems. But the situation poses a special concern for people still using Windows XP because security updates and patches ceased after April 8th, 2014.

FRSecure recommends that a different browser be used temporarily till Microsoft issues a patch for Internet Explorer across all its operating systems. In addition, FRSecure will monitor Microsoft’s position regarding the XP patch for Internet Explorer and notify our constituents should a further advisory be needed.

Details

The vulnerability exists in the way that Internet Explorer accesses an object in memory that has been deleted or has not been properly allocated. The vulnerability may corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user within Internet Explorer. An attacker could host a specially crafted website that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the website.

On completion of its investigation, Microsoft will take the appropriate action to protect customers, which may include providing a solution through our monthly security update release process, or an out-of-cycle security update, depending on customer needs. Microsoft continues to encourage customers to follow the guidance in the Microsoft Safety & Security Center of enabling a firewall, applying all software updates, and installing anti-malware software.

Sources

Department of Homeland Security:
http://www.us-cert.gov/ncas/current-activity/2014/04/28/Microsoft-Internet-Explorer-Use-After-Free-Vulnerability-Being  

Vulnerability Database Notes:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-1776
http://www.kb.cert.org/vuls/id/222929  

Microsoft:
https://technet.microsoft.com/library/security/2963983