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AUSCERT External Security Bulletin Redistribution
ESB-2017.0889
Schneider Electric Interactive Graphical SCADA System Software
5 April 2017
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AusCERT Security Bulletin Summary
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Product: Schneider Electric Interactive Graphical SCADA System
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2017-6033
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-094-01
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Advisory (ICSA-17-094-01)
Schneider Electric Interactive Graphical SCADA System Software
Original release date: April 04, 2017
Print Document
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
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referenced in this product or otherwise. Further dissemination of this
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CVSS v3 6.8
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Schneider Electric
Equipment: Interactive Graphical SCADA System (IGSS) Software
Vulnerability: DLL Hijacking
AFFECTED PRODUCTS
Schneider Electric reports that the vulnerability affects the following
IGSS HMI desktop application:
IGSS Software, Version 12 and previous versions.
IMPACT
An attacker who exploits this vulnerability may be able to remotely execute
arbitrary code.
MITIGATION
Schneider Electric recommends that users upgrade to Windows 10 to mitigate
this vulnerability. Windows 10 enforces a fixed path to the DLL.
More information can be found by visiting Schneider Electrics security
notification number SEVD-2017-090-01 at:
http://www.schneider-electric.com/en/download/document/SEVD-2017-090-01/
NCCIC/ICS-CERT recommends that users take defensive measures to minimize
the risk of exploitation of this vulnerability. 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.
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.
No known public exploits specifically target this vulnerability. This
vulnerability requires user interaction or social engineering to exploit.
VULNERABILITY OVERVIEW
UNCONTROLLED SEARCH PATH ELEMENT CWE-427
The software will execute a malicious file if it is named the same as a
legitimate file and placed in a location that is earlier in the search path.
CVE-2017-6033 has been assigned to this vulnerability. A CVSS v3
base score of 6.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H).
RESEARCHER
Karn Ganeshen reported this vulnerability.
BACKGROUND
Critical Infrastructure Sectors: Critical Manufacturing, Energy
Area Deployed: Worldwide
Company Headquarters Location: France
Contact Information
For any questions related to this report, please contact ICS-CERT at:
Email: ics-cert@hq.dhs.gov
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900
For industrial control systems security information and incident reporting:
http://ics-cert.us-cert.gov
ICS-CERT 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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