SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-330068883] Schneider Electric SoMachine HVAC Unsafe ActiveX Control Vulnerability

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2016-07-14SOFTWARESchneider Electric SoMachineAndrea MicalizziN/A2016-4529N/AN/AN/A

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# Schneider Electric SoMachine HVAC Unsafe ActiveX Control Vulnerability
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### OVERVIEW

Andrea Micalizzi discovered an unsafe ActiveX control vulnerability in Schneider Electric's SoMachine software. He reported this vulnerability to ZDI who then reported it to NCCIC/ICS-CERT. Schneider Electric has produced a patch to mitigate this vulnerability.

This vulnerability could be exploited remotely.




### AFFECTED PRODUCTS

Schneider Electric reports that the vulnerability affects the following products:

SoMachine HVAC-Application Version 2.0.2 and previous.






### IMPACT

An exploitation of this vulnerability may allow an attacker to remotely execute arbitrary code.

Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.






### BACKGROUND

Schneider Electric's corporate headquarters is located in Paris, France, and it maintains offices in more than 100 countries worldwide.

The affected product, SoMachine, is software for developing, configuring, and commissioning a machine in a single software environment, including logic, motion control, HMI, and related network automation functions. According to Schneider Electric, SoMachine is deployed in the Commercial Facilities sector. Schneider Electric estimates that this product is used worldwide.





### VULNERABILITY CHARACTERIZATION


# VULNERABILITY OVERVIEW

UNSAFE ACTIVEX CONTROL MARKED SAFE-FOR-SCRIPTING

An ActiveX control is intended for restricted use, but it has been marked as safe-for-scripting.
CVE-2016-4529 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).





### VULNERABILITY DETAILS


# EXPLOITABILITY

This vulnerability could be exploited remotely.


# EXISTENCE OF EXPLOIT

No known public exploits specifically target this vulnerability.


# DIFFICULTY

An attacker with a low skill would be able to exploit this vulnerability.





### MITIGATION

Schneider Electric has released a patch that resolves the vulnerability. Schneider Electric's patch is available at the following location:
http://www.schneider-electric.com/ww/en/download/document/SoMachine%20HVAC%20-%20Programming%20Software%20for%20Modicon%20M171-M172%20Logic%20Controllers

Schneider Electric's security notice SEVD-2016-161-01 is available at the following location:
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2016-161-01