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Category:   Application (Web Browser)  >   Microsoft Internet Explorer Vendors:   Microsoft
Microsoft Internet Explorer Multiple Flaws Let Remote Users Bypass Code-Signing Validation, View Arbitrary Files, and Execute Arbitrary Code
SecurityTracker Alert ID:  1035820
SecurityTracker URL:  http://securitytracker.com/id/1035820
CVE Reference:   CVE-2016-0187, CVE-2016-0188, CVE-2016-0189, CVE-2016-0192, CVE-2016-0194   (Links to External Site)
Date:  May 10 2016
Impact:   Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9, 10, 11
Description:   Multiple vulnerabilities were reported in Microsoft Internet Explorer. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can bypass security controls on the target system. A remote user can obtain files on the target system.

A remote user can create specially crafted content that, when loaded by the target user, will trigger an object handling memory corruption error in the JScript and VBScript engines to execute arbitrary code on the target user's system [CVE-2016-0187, CVE-2016-0189].

A remote user can create specially crafted unsigned code that will bypass the code integrity validation function in the User Mode Code Integrity (UMCI) component of Device Guard [CVE-2016-0188]. Internet Explorer 11 on Windows 10 is affected.

A remote user can create specially crafted content that, when loaded by the target user, will trigger an object handling memory corruption error and execute arbitrary code on the target user's system [CVE-2016-0192].

A remote user can send a specially crafted request to trigger a file access permissions flaw and view the contents of arbitrary files on the target user's system [CVE-2016-0194]. Internet Explorer 9 is not affected.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A remote user can bypass code signing validation controls on the target system.

A remote user can view the contents of arbitrary files on the target system.

Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor advisory.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms16-051

Vendor URL:  technet.microsoft.com/library/security/ms16-051 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 10 2016 (Microsoft Issues Fix for Windows Script Engine) Microsoft Internet Explorer Multiple Flaws Let Remote Users Bypass Code-Signing Validation, View Arbitrary Files, and Execute Arbitrary Code
Microsoft has issued a fix for Windows Script Engine.



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