Schneider Electric SoMachine HVAC DLL Loading Remote Code Execution Vulnerability

Bugtraq ID:	98446
Class:	Design Error
CVE:	CVE-2017-7966
Remote:	Yes
Local:	No
Published:	May 05 2017 12:00AM
Updated:	May 23 2017 04:26PM
Credit:	Himanshu Mehta
Vulnerable:	Schneider-Electric SoMachine HVAC 2.1
Not Vulnerable:	Schneider-Electric SoMachine HVAC 2.2

Schneider Electric SoMachine HVAC DLL Loading Remote Code Execution Vulnerability

Schneider Electric SoMachine HVAC is prone to a remote code-execution vulnerability.

A remote attacker can leverage this issue to execute arbitrary code in the context of the affected application.

Schneider Electric SoMachine HVAC 2.1.0 is vulnerable; other versions may also be affected.

Schneider Electric SoMachine HVAC DLL Loading Remote Code Execution Vulnerability

Attackers must trick a user into opening a file on a remote WebDAV or SMB share to exploit this issue.

A general exploit technique has been documented by TheLeader and H.D. Moore for the Metasploit Project; please see the references for more information.

Schneider Electric SoMachine HVAC DLL Loading Remote Code Execution Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Schneider Electric SoMachine HVAC DLL Loading Remote Code Execution Vulnerability

References:

• Application DLL Load Hijacking (HD Moore)
  
• Exploiting DLL Hijacking Flaws (hdm)
  
• More information about the DLL Preloading remote attack vector (Microsoft)
  
• Schneider Electric Homepage (Schneider Electric)
  
• ICSA-17-136-02 Schneider Electric SoMachine HVAC (CERT)
  
• Security Notification - SoMachine HVAC Programming Software (Schneider Electric)