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AUSCERT External Security Bulletin Redistribution
ESB-2017.0599
Schneider Electric Wonderware Intelligence
8 March 2017
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AusCERT Security Bulletin Summary
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Product: Schneider Electric Wonderware Intelligence
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Root Compromise -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-5178
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-066-01
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Advisory (ICSA-17-066-01)
Schneider Electric Wonderware Intelligence
Original release date: March 07, 2017
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 9.8
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Schneider Electric
Equipment: Wonderware Intelligence
Vulnerability: Credentials Management
AFFECTED PRODUCTS
The following versions of Wonderware Intelligence, an operations management
software, are affected:
Tableau Server/Desktop Versions 7.0 to 10.1.3 included in Wonderware
Intelligence Versions 2014R3 and prior.
IMPACT
The vulnerability, if exploited, could allow a malicious entity to escalate
its privilege to an administrator and take control over the host machine where
Tableau Server is installed.
MITIGATION
Schneider Electric has released a new software version to address the
identified vulnerability and recommends that users using affected versions
apply Tableau Server Version 10.1.4. In addition, the Analytics Client
(Tableau Desktop OEM) should also be upgraded to Version 10.1.4. Upgrading to
Intelligence Server 2014 R3 is also recommended.
The Schneider Electric customers using Wonderware Intelligence can login at
the following support sites to download the Tableau patches:
Tableau Analytics Dashboard Server v10.1.4
https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22386 (link
is external)
Tableau Analytics Client v10.1.4
https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22385 (link
is external)
Wonderware Intelligence 2014 R3
https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22288 (link
is external)
Schneider Electric has issued Security Bulletin LFSEC00000119, which contains
additional information:
http://software.schneider-electric.com/support/cyber-security-updates/ (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.
No known public exploits specifically target this vulnerability.
VULNERABILITY OVERVIEW
CREDENTIALS MANAGEMENT CWE-255
Tableau Server is embedded within the Schneider Electric Wonderware
Intelligence software and contains a system account that is installed by
default. The default system account is difficult to modify to use non-default
credentials after installation and changing the default credentials in the
embedded Tableau Server is not documented. As such, Schneider Electric has
released a new software version that removes the default system account in the
embedded Tableau Server.
If Tableau Server is used with Windows integrated security (Active Directory),
the software is not vulnerable. However, when Tableau Server is used with
local authentication mode, the software is vulnerable. The default system
account could be used to gain unauthorized access.
CVE-2017-5178 has been assigned to this vulnerability. A CVSS v3 base score of
9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
RESEARCHER
Schneider Electric self-reported this vulnerability.
BACKGROUND
Critical Infrastructure Sectors: Critical Manufacturing, Energy, Healthcare
and Public Health, and Water and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Paris, France
Contact Information
For any questions related to this report, please contact ICS-CERT at:
Email: ics-cert@hq.dhs.gov (link sends e-mail)
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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