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             AUSCERT External Security Bulletin Redistribution

         Advisory (ICSA-17-313-02) Schneider Electric InduSoft Web
                    Studio and InTouch Machine Edition
                             10 November 2017


        AusCERT Security Bulletin Summary

Product:           Schnedier Electric InduSoft Web Studio
                   Schneider Electric InTouch Machine Edition
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14024  

Original Bulletin: 

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Advisory (ICSA-17-313-02)

Schneider Electric InduSoft Web Studio and InTouch Machine Edition

Original release date: November 09, 2017

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CVSS v3 9.8

ATTENTION: Remotely exploitable/low skill level to exploit. Public exploits 
are available.

Vendor: Schneider Electric

Equipment: InduSoft Web Studio, InTouch Machine Edition

Vulnerability: Stack-based Buffer Overflow


The following versions of InduSoft Web Studio and InTouch Machine Edition, an
HMI, are affected:

- -InduSoft Web Studio v8.0 SP2 Patch 1 and prior versions, and
- -InTouch Machine Edition v8.0 SP2 Patch 1 and prior versions.


Successful exploitation of this vulnerability could allow a remote 
un-authenticated attacker to remotely execute code with high privileges.


Schneider Electric recommends:

- -Users using InduSoft Web Studio v8.0 SP2 Patch 1 or prior versions are 
affected and should upgrade and apply InduSoft Web Studio v8.1 as soon as 

- -Users using InTouch Machine Edition v8.0 SP2 Patch 1 or prior versions are 
affected and should upgrade and apply InTouch Machine Edition 2017 v8.1 as 
soon as possible.

Schneider Electric has also released Security Bulletin LFSEC00000124 that can
be found at:

(link is external)

NCCIC/ICS-CERT recommends that users take defensive measures to minimize the 
risk of exploitation of this vulnerability. Specifically, users should:

- -Minimize network exposure for all control system devices and/or systems, and
ensure that they are not accessible from the Internet.

- -Locate control system networks and remote devices behind firewalls, and 
isolate them from the business network.

- -When remote access is required, use secure methods, such as Virtual Private 
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize that VPN is only
as secure as the connected devices.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT 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 ICSCERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site.

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



The stack-based buffer overflow vulnerability has been identified, which may 
allow remote code execution with high privileges.

CVE-2017-14024 has been assigned to this vulnerability. A CVSS v3 base score 
of 9.8 has been assigned; the CVSS vector string is 


Aaron Portnoy, formerly of Exodus Intelligence, reported the vulnerability to
Schneider Electric.


Critical Infrastructure Sectors: Commercial Facilities, Critical 
Manufacturing, Energy, Transportation Systems, and Water and Wastewater 

Countries/Areas Deployed: Worldwide

Company Headquarters Location: France

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