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AUSCERT External Security Bulletin Redistribution
ESB-2015.0590
Elipse E3 Process Control Vulnerability (Update A)
12 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Elipse E3
Publisher: US-CERT
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0978
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-15-069-04A
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Advisory (ICSA-15-069-04A)
Elipse E3 Process Control Vulnerability (Update A)
Original release date: March 11, 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
This updated advisory is a follow-up to the original advisory titled
ICSA-15-069-04 Elipse E3 Process Control Vulnerability that was published
March 10, 2015, on the NCCIC/ICS-CERT web site.
Ivan Sanchez from Nullcode Team has identified a process control vulnerability
in the Elipse E3 application. The process control vulnerability is a result of
a third-party DLL, developed by Telerik, which is used in the Elipse E3
application. Elipse has released a new version that mitigates this
vulnerability. The researcher has tested Elipses new version to validate that
it resolves the vulnerability.
AFFECTED PRODUCTS
The following Elipse E3 versions are affected:
Elipse E3, Versions 4.5.232-4.6.161,
EQATEC.Analytics.Monitor.Win32_vc100.dll (32-bit), and
EQATEC.Analytics.Monitor.Win32_vc100-x64.dll (64-bit).
IMPACT
Successful exploitation of this vulnerability would require the victim to
install and execute malicious code that could result in arbitrary code
execution.
Impact to individual organizations depends on many factors that are unique to
each organization. NCCIC/ICS-CERT recommends that organizations evaluate the
impact of this vulnerability based on their operational environment,
architecture, and product implementation.
BACKGROUND
Elipse is a Brazil-based company that has business partners in several
countries around the world, including the US, Germany, India, Russia, Sweden,
Argentina, and Chile.
The affected product, Elipse E3, is a supervisory control and data acquisition
system for use in critical systems. According to Elipse, Elipse E3 is deployed
across several sectors including Critical Manufacturing. Elipse estimates that
this product is used worldwide.
VULNERABILITY CHARACTERIZATION
VULNERABILITY OVERVIEW
PROCESS CONTROL[a]
The affected DLL is linked with OpenSSL to support HTTPS communications. The
OpenSSL library was unintentionally built with hardware-support, resulting in
unintended cryptographic-related DLLs being called at runtime. The
unintentional DLL calls may enable an attacker to execute arbitrary code at
runtime after convincing a victim to install a malicious DLL called by the
application.
CVE-2015-0978[b] has been assigned to this vulnerability. A CVSS v2 base score
of 6.2 has been assigned; the CVSS vector string is
(AV:L/AC:H/Au:N/C:C/I:C/A:C).[c]
VULNERABILITY DETAILS
EXPLOITABILITY
This vulnerability is not exploitable remotely and cannot be exploited without
user interaction. The exploit is only triggered when a local user runs the
vulnerable application and loads the malformed file.
EXISTENCE OF EXPLOIT
No known public exploits specifically target this vulnerability.
DIFFICULTY
Crafting a working exploit for this vulnerability would be difficult. Social
engineering is required to convince the user to accept and load the malformed
file. This decreases the likelihood of a successful exploit.
MITIGATION
Elipse has released a new version of its Elipse E3 software, Version 4.6.162,
which incorporates the new version of Teleriks DLLs, Version 3.2.129. Elipses
new version is available at:
http://www.elipse.com.br/eng/download_e3.aspx
Teleriks vulnerable DLLs were discovered in Version 3.2.96 and after being
notified, Telerik notified their affected customers.
- --------- Begin Update A Part 1 of 1 --------
Additional information about the vulnerability in the Telerik Analytics
Monitor Library is available in CERT/CCs Vulnerability Note, VU#794095, at:
http://www.kb.cert.org/vuls/id/794095
- --------- End Update A Part 1 of 1 ----------
ICS-CERT encourages asset owners to take additional defensive measures to
protect against this and other cybersecurity risks.
Do not click web links or open unsolicited attachments in email messages.
Refer to Recognizing and Avoiding Email Scams[d] for more information on
avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks[e] for more
information on social engineering attacks
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 ICS-CERT 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-114: Process Control, http://cwe.mitre.org/data/definitions/114.html,
web site last accessed March 10, 2015.
b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0978, 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:L/AC:H/Au:N/C:C/I:C/A:C, web
site last accessed March 10, 2015.
d. Recognizing and Avoiding Email Scams,
http://www.us-cert.gov/reading_room/emailscams_0905.pdf, web site last
accessed March 10, 2015.
e. National Cyber Alert System Cyber Security Tip ST04-014,
http://www.us-cert.gov/cas/tips/ST04-014.html, web site last accessed March
10, 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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NOTE: This is only the original release of the security bulletin. It may
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
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