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Category:   OS (Microsoft)  >   Windows Explorer Vendors:   Microsoft
Windows Explorer Bugs Let Remote Users Deny Service and Execute Arbitrary Code
SecurityTracker Alert ID:  1038850
SecurityTracker URL:  http://securitytracker.com/id/1038850
CVE Reference:   CVE-2017-8463, CVE-2017-8587   (Links to External Site)
Date:  Jul 11 2017
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1, 2008 SP2, 2012, 8.1, 2012 R2, RT 8.1, 10, 10 Version 1511, 2016, 10 Version 1607, 10 Version 1703
Description:   Two vulnerabilities were reported in Windows Explorer. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can cause the target system to crash.

A remote user can create a specially crafted HTML containing a reference to a non-existing file that, when loaded by the target user, will cause the target user's system to stop responding [CVE-2017-8587]. Windows 10 versions 1607 and 1703 and Windows 2016 are not affected.

A remote user can create a specially crafted folder and file on a share that, when loaded by the target user, will trigger a flaw in the handling of executable files and shares during rename operations to execute arbitrary code on the target system. The code will run with the privileges of the target user.

Tencent Security's Sword Team (via Trend Micro's Zero Day Initiative (ZDI)) reported one vulnerability.

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 create content that, when loaded by the target user, will cause the target user's system to stop responding.

Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8587
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8463

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8587 (Links to External Site)
Cause:   Access control error, State error

Message History:   None.


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