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TLP:WHITE

Advisory (ICSA-18-065-02)

Schneider Electric SoMove Software and DTM Software Components

Original release date: March 06, 2018

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CVSS v3 7.8

Vendor: Schneider Electric

Equipment: SoMove software and DTM software components

Vulnerability: Uncontrolled Search Path Element

AFFECTED PRODUCTS

Schneider Electric reports the vulnerability affects the following SoMove software and DTM software components:

  • SoMove software, versions prior to 2.6.2
  • ATV320 DTM, versions prior to 1.1.6
  • ATV340 DTM, versions prior to 1.2.3
  • ATV6xx DTM, versions prior to 1.8.0
  • ATV9xx DTM, versions prior to 1.3.5
  • AltivarDtmLibrary, versions prior to 12.7.0
  • ATV32 DTM
  • ATV71 DTM
  • ATV61 DTM
  • ATV LIFT DTM
  • ATV31/312 DTM
  • ATV212 DTM
  • ATV12 DTM

IMPACT

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

MITIGATION

Schneider Electric has provided the following updates for the affected software packages:

  • SoMove Software—SoMove_V2.6.3

https://www.schneider-electric.com/en/download/document/SoMove_FDT/

  • ATV320 DTM—Schneider_Electric_Altivar_Machine_ATV320_DTM_Library_V1.1.6

https://www.schneider-electric.com/en/download/document/ATV320_DTM_Library/

  • ATV340 DTM—Schneider_Electric_Altivar_Machine_ATV340_DTM_Library_V1.2.3

https://www.schneider-electric.com/en/download/document/ATV340_DTM_LibraryEN/

  • ATV6XX DTM—Schneider_Electric_Altivar_Process_ATV6xx_DTM_Library_V1.8.0

https://www.schneider-electric.com/en/download/document/ATV6xx_DTM_Library_EN/

  • ATV9XX DTM—Schneider-Electric-Altivar-Process-ATV9xx-DTM-Library-V1.3.5

https://www.schneider-electric.com/en/download/document/ATV9xx_DTM_Library_EN/

  • ATV32 / ATV71 / ATV61 / ATV LIFT / ATV31_312 / ATV212 / ATV12 AltivarDtmLibraryV12.7.0

https://www.schneider-electric.com/en/download/document/Altivar_DTM_Library/

For more information on this vulnerability and its associated patches, please see Schneider Electric’s security notification SEVD-2018-060-01 on their website:

https://www.schneider-electric.com/en/download/document/SEVD-2018-060-01/

For further information related to cybersecurity in Schneider Electric products, please visit the company’s cybersecurity web page:

http://www2.schneider-electric.com/sites/corporate/en/support/cybersecurity/cybersecurity.page

NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability by protecting themselves from social engineering attacks. Specifically, users should:

NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly available in the NCCIC Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT website.

Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.

No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely. Low skill level is needed to exploit.

VULNERABILITY OVERVIEW

An attacker may execute malicious DLL files that have been placed within the search path.

CVE-2018-7239 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

RESEARCHER

ADLab of Venustech reported this vulnerability to NCCIC.

BACKGROUND

Critical Infrastructure Sectors: Critical manufacturing

Countries/Areas Deployed: Worldwide

Company Headquarters Location: France


Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http://ics-cert.us-cert.gov 
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

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