Microsoft Internet Explorer Remote Code Execution Vulnerability

Overview

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iPolicy Networks Security Advisory


Date Discovered:	01/15/2010
Severity:	High
Operating Systems Affected:	Microsoft Windows 2000 SP4 Microsoft Windows XP SP2 Microsoft Windows XP SP3 Microsoft Windows XP Professional x64 SP2 Microsoft Windows Server 2003 SP2 Microsoft Windows Server 2003 x64 SP2 Microsoft Windows Vista Microsoft Windows Vista SP1 Microsoft Windows Vista SP2 Microsoft Windows 7
Application Affected:	Microsoft Internet Explorer 6 Microsoft Internet Explorer 6 SP1 Microsoft Internet Explorer 7 Microsoft Internet Explorer 8
Type:	Remote
Identifiers:	CVE-2010-0249 CVE-2010-0248

Synopsis

Microsoft Internet Explorer is prone to memory corruption vulnerability. This vulnerability exists in the way that Internet Explorer handling certain event operations may lead to a crash or remote code execution.

Recommended Actions

Update the patches as guided by vendor at :
http://www.microsoft.com/technet/security/bulletin/ms10-002.mspx

Threat Analysis

The vulnerability exists as an invalid pointer reference within Internet Explorer. It is possible under certain conditions for the invalid pointer to be accessed after an object is deleted.

An attacker could host a specially crafted Web site that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the Web site. The attacker could also take advantage of compromised Web sites and Web sites that accept or host user-provided content or advertisements. These Web sites could contain specially crafted content that could exploit this vulnerability.

An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, delete data, or create new accounts with full user rights.

References

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0249
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0248

Write-up by: Aditya Chaturvedi

Security Sites

“iPolicy is one of the most visionary firewall vendors in the firewall Magic Quadrant. Its architecture of a central session processing engine and multiple content blades that are able to block based on signatures, rules and so on is the closest to the network security ideal.”

Greg Young, John Pescatore
Magic Quadrant for Network Firewalls, 2H04, Gartner

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