iPolicy Networks Security Advisory
 

Microsoft IE Uninitialized Object Remote Code Execution Vulnerability

Date Discovered: 06/08/2010
Severity: High
Operating Systems Affected: Microsoft Windows 2000 Service Pack 4
Windows XP SP 2
Windows XP SP 3
Windows XP Professional x64 Edition SP 2
Windows Server 2003 SP 2
Windows Server 2003 x64 Edition SP 2
Windows Server 2003 SP2 for Itanium-based Systems
Windows Vista SP 1
Windows Vista SP 2
Windows Vista x64 Edition SP 1
Windows Vista x64 Edition SP 2
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for 32-bit Systems SP 2
Windows Server 2008 for x64-based Systems
Windows Server 2008 for x64-based Systems SP 2
Windows Server 2008 for Itanium-based Systems
Windows Server 2008 for Itanium-based Systems SP 2
Application Affected: Internet Explorer 5.01 Service Pack 4
Internet Explorer 6 Service Pack 1
Internet Explorer 6
Internet Explorer 7
Internet Explorer 8
Identifiers: CVE-2010-1259
Synopsis
Microsoft Internet explorer is prone to remote code execution vulnerability which could be exploited by an attacker to execute arbitrary code on the affected system.
Recommended Actions
Update the patches as guided by vendor at :
http://www.microsoft.com/technet/security/bulletin/MS10-035.mspx
Threat Analysis
A remote code execution vulnerability exists in Microsoft Internet Explorer due to improper accesses of an object that has not been correctly initialized or has been deleted.

A remote attacker could exploit the vulnerability by tricking the user to visit a specially crafted Web page that could allow arbitrary code execution on the affected system. Successful exploitation of the vulnerability could allow an attacker to install programs, view, change, or delete data or create new accounts with full user rights.
References

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1259

Write-up by: Anupam Kumar