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Category:   Application (Generic)  >   Wonderware SuiteLink Vendors:   Schneider Electric, Wonderware
Schneider Electric Wonderware SuiteLink DLL Loading Error Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1033180
SecurityTracker URL:  http://securitytracker.com/id/1033180
CVE Reference:   CVE-2015-3940   (Links to External Site)
Date:  Aug 4 2015
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2014, 2014 R2
Description:   A vulnerability was reported in Schneider Electric Wonderware SuiteLink. A local user can obtain elevated privileges on the target system.

A local user can create a specially crafted DLL file in a directory on the target system. When the target application is executed, the application will load the specially crafted DLL instead of the intended DLL and execute arbitrary code. The code will run with the privileges of the target user.

This type of exploit is also known as "binary planting" or "DLL preloading".

Ivan Sanchez and the team from Wise Security reported this vulnerability via ICS-CERT.

Impact:   A local user can obtain System privileges on the target system.
Solution:   The vendor has issued a fix [in June 2015].

For Wonderware System Platform 2014 R2: WSP2014R2P01

For Wonderware System Platform 2014 and prior: Upgrade to WSP2014 R2 and apply WSP2014R2P01

The vendor's advisory is available at:

http://software.schneider-electric.com/pdf/security-bulletin/lfsec00000106/

Vendor URL:  software.schneider-electric.com/pdf/security-bulletin/lfsec00000106/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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