ESB-2018.0658 - [Win] Schneider Electric SoMove Software and DTM Software Components: Execute arbitrary code/commands - Existing account 2018-03-07

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0658
         A vulnerability has been identified in Schneider Electric
                SoMove Software and DTM Software Components
                               7 March 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Schneider Electric SoMove Software and DTM Software Components
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-7239  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-18-065-02

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Advisory (ICSA-18-065-02)

Schneider Electric SoMove Software and DTM Software Components

Original release date: March 06, 2018

Legal Notice

All information products included in http://ics-cert.us-cert.gov are provided
"as is" for informational purposes only. The Department of Homeland Security 
(DHS) does not provide any warranties of any kind regarding any information 
contained within. DHS does not endorse any commercial product or service, 
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For 
more information about TLP, see http://www.us-cert.gov/tlp/.

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 SoftwareSoMove_V2.6.3

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

ATV320 DTMSchneider_Electric_Altivar_Machine_ATV320_DTM_Library_V1.1.6

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

ATV340 DTMSchneider_Electric_Altivar_Machine_ATV340_DTM_Library_V1.2.3

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

ATV6XX DTMSchneider_Electric_Altivar_Process_ATV6xx_DTM_Library_V1.8.0

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

ATV9XX DTMSchneider-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 Electrics 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 companys 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:

Do not click web links or open unsolicited attachments in email messages.

Refer to Recognizing and Avoiding Email Scams for more information on avoiding
email scams.

Refer to Avoiding Social Engineering and Phishing Attacks for more information
on social engineering attacks.

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

UNCONTROLLED SEARCH PATH ELEMENT CWE-427

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?

The NCCIC continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 
product.

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