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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
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2017-14024
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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
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.
STACK-BASED BUFFER OVERFLOW CWE-121
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
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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