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AUSCERT External Security Bulletin Redistribution
ESB-2017.2381
Advisory (ICSA-17-262-01) PHOENIX CONTACT mGuard Device Manager
20 September 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: Phoenix Contact mGuard Device Manager
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-10198 CVE-2017-10176 CVE-2017-10135
CVE-2017-10118 CVE-2017-10116 CVE-2017-10115
CVE-2017-10108 CVE-2017-10102 CVE-2017-10078
CVE-2017-10053
Reference: CVE-2017-10053
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-262-01
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Advisory (ICSA-17-262-01)
PHOENIX CONTACT mGuard Device Manager
Original release date: September 19, 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 9.0
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: PHOENIX CONTACT
Equipment: mGuard Device Manager
Vulnerabilities: Improper Access Control vulnerabilities for Oracle Java SE
AFFECTED PRODUCTS
The following versions of mGuard Device Manager, a device management software
for mGuard devices, are affected:
mGuard Device Manager 1.8.0 and older.
IMPACT
Successful exploitation of these vulnerabilities could allow unauthorized
remote access, modification of data, and may allow remote and local users to
gain elevated privileges.
MITIGATION
PHOENIX CONTACT recommends that all users of the affected product on Windows
should update to at least Version 1.8.0.1. The update can be performed by
simply executing the installer for Version 1.8.0.1 on a Windows system where
the product is installed in Version 1.8.0. The installer is available for
download on the product page, in section "Software" on the Downloads tab at
the following location:
https://www.phoenixcontact.com/online/portal/us?uri=pxc-oc-itemdetail:pid=2981974
(link is external)
For more information please refer to the document "How to upgrade mGuard
device manager" downloaded with the installer.
PHOENIX CONTACT recommends that all users of the affected product on Linux
should update Java to the latest version. When using the packet source
delivered by PHOENIX CONTACT on Ubuntu, this is simply done by using the
software updater of the operating system.
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the
risk of exploitation of these vulnerabilities. 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 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.
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 these vulnerabilities.
VULNERABILITY OVERVIEW
IMPROPER ACCESS CONTROL CWE-284
Improper Access Control vulnerabilities have been reported for Oracle Java SE,
which is provided with PHOENIX CONTACT FL MGUARD DM. According to Oracle, the
supported Java versions affected by these vulnerabilities are Java SE: 8u131,
7u141 and 6u151, Java SE Embedded: 8u131, and JRockit: R28.3.14. PHOENIX
CONTACT provided FL MGUARD DM 1.8.0 for Windows with Java SE 8u131.
CVE-2017-10102, CVE-2017-10116, CVE-2017-10078, CVE-2017-10115,
CVE-2017-10118, CVE-2017-10176, CVE-2017-10198, CVE-2017-10135,
CVE-2017-10053, CVE-2017-10108 have been assigned to these vulnerabilities. A
CVSS v3 base score of 9.0 has been assigned; the CVSS vector string is
(AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).
For more information on these vulnerabilities, please refer to sources cited
at these locations:
Published advisory of CERT@VDE:
https://cert.vde.com/de-de/advisories/vde-2017-002 (link is external)
Oracle Critical Patch Update Advisory report:
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
(link is external)
RESEARCHER
PHOENIX CONTACT reported these vulnerabilities to CERT@VDE. CERT@VDE
coordinated these vulnerabilities with ICS-CERT.
BACKGROUND
Critical Infrastructure Sectors: Communications, Critical Manufacturing,
Information Technology
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Germany
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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