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AUSCERT External Security Bulletin Redistribution
ESB-2015.0143
Advisory (ICSA-15-020-02) Schneider Electric ETG3000
FactoryCast HMI Gateway Vulnerabilities
21 January 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: TSXETG3000
TSXETG3010
TSXETG3021
TSXETG3022
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Delete Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-9198 CVE-2014-9197
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-15-020-02
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Advisory (ICSA-15-020-02)
Schneider Electric ETG3000 FactoryCast HMI Gateway Vulnerabilities
Original release date: January 20, 2015
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/.
OVERVIEW
Narendra Shinde of Qualys Security has identified multiple vulnerabilities in
Schneider Electrics ETG3000 FactoryCast HMI Gateway. Schneider Electric has
produced a firmware update that mitigates part of these vulnerabilities.
These vulnerabilities could be exploited remotely.
AFFECTED PRODUCTS
The following ETG3000 FactoryCast HMI Gateways are affected:
TSXETG3000 all versions,
TSXETG3010 all versions,
TSXETG3021 all versions, and
TSXETG3022 all versions.
IMPACT
The vulnerabilities allow unauthorized remote access to the gateways files and
FTP account.
Impact to individual organizations depends on many factors that are unique to
each organization. NCCIC/ICS-CERT recommends that organizations evaluate the
impact of these vulnerabilities based on their operational environment,
architecture, and product implementation.
BACKGROUND
Schneider Electric corporate headquarters is located in Paris, France, and
maintains offices in 190 countries worldwide.
The affected product, ETG3000 FactoryCast HMI Gateway, is a web-based SCADA
system. According to Schneider Electric, these gateways are deployed across
several sectors including Critical Manufacturing, Energy, Water and Wastewater
Systems, and others. Schneider Electric estimates that these products are used
globally.
VULNERABILITY CHARACTERIZATION
VULNERABILITY OVERVIEW
UNAUTHENTICATED ACCESS[a]
Access to the rde.jar file containing configuration details is accessible
without authentication. This could allow an attacker access to information on
the setup and configuration of the gateway.
CVE-2014-9197[b] has been assigned to this vulnerability. A CVSS v2 base score
of 10.0 has been assigned; the CVSS vector string is
(AV:N/AC:L/Au:N/C:C/I:C/A:C).[c]
FTP HARD-CODED CREDENTIALS[d]
The ftp server of the device has hard-coded credentials. This could allow the
attacker to access the service without proper authentication.
CVE-2014-9198[e] has been assigned to this vulnerability. A CVSS v2 base score of
10.0 has been assigned; the CVSS vector string is
(AV:N/AC:L/Au:N/C:C/I:C/A:C).[f]
VULNERABILITY DETAILS
EXPLOITABILITY
These vulnerabilities could be exploited remotely.
EXISTENCE OF EXPLOIT
No known public exploits specifically target these vulnerabilities.
DIFFICULTY
An attacker with a low skill would be able to exploit these vulnerabilities.
MITIGATION
Schneider Electric has produced an updated firmware, labelled V1.60 IR 04.
This firmware release moves the jar files directory in a secure area. The new
firmware also includes the ability to disable the FTP server. This updated
firmware can be downloaded at:
http://www.schneider-electric.com/download/WW/EN/details/681790255-TSXETG30xx-V160-IR4/?showAsIframe=true&reference=ETG30xxV160-IR04
Schneider Electric recommends the FTP server be deactivated when not needed.
The firmware update does not remove the hard-coded credentials.
Narendra Shinde also found that configuration files were accessible using
default credentials. Schneider Electric recommends users change the default
login credentials. This will protect configuration files from unauthorized
access.
ICS-CERT encourages asset owners to take additional defensive measures to
protect against this and other cybersecurity risks.
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 also provides a section for control systems security recommended
practices on the ICS-CERT web page at:
http://ics-cert.us-cert.gov/content/recommended-practices. Several recommended
practices are available for reading and download, including Improving
Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
ICS-CERT reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
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
(http://ics-cert.us-cert.gov/).
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.
a. CWE-306: Missing Authentication for Critical Function,
http://cwe.mitre.org/data/definitions/306.html, web site last accessed January
20, 2015.
b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9197,
NIST uses this advisory to create the CVE web site report. This web site will
be active sometime after publication of this advisory.
c. CVSS Calculator,
http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:C/I:C/A:C, web
site last accessed January 20, 2015.
d. CWE-798: Use of Hard-coded Credentials,
http://cwe.mitre.org/data/definitions/798.html, web site last accessed January
20, 2015.
e. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9198,
NIST uses this advisory to create the CVE web site report. This web site will
be active sometime after publication of this advisory.
f. CVSS Calculator,
http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:C/I:C/A:C, web
site last accessed January 20, 2015.
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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