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AUSCERT External Security Bulletin Redistribution
Advisory (ICSA-17-334-02) Geovap Reliance SCADA
1 December 2017
AusCERT Security Bulletin Summary
Product: Geovap Reliance SCADA
Operating System: Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
CVE Names: CVE-2017-16721
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Geovap Reliance SCADA
Original release date: November 30, 2017
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CVSS v3 6.1
ATTENTION: Remotely exploitable/low skill level to exploit.
Equipment: Reliance SCADA
Vulnerability: Cross-site Scripting
The following versions of Reliance SCADA, a software management platform, are
Reliance SCADA Version 4.7.3 Update 2 and prior.
Successful exploitation of this vulnerability could allow an unauthenticated
that may allow for read/write access.
Geovap has released Version 4.7.3 Update 3 of the software which can be found
https://www.reliance-scada.com/en/download (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.
IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE
This vulnerability could allow an unauthenticated attacker to inject arbitrary
CVE-2017-16721 has been assigned to this vulnerability. A CVSS v3 base score
of 6.1 has been assigned; the CVSS vector string is
Can Demirel reported the vulnerability to ICS-CERT.
Critical Infrastructure Sectors: Critical Manufacturing, Energy,
Transportation Systems, and Water and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Czech Republic
For any questions related to this report, please contact ICS-CERT at:
Email: firstname.lastname@example.org (link sends e-mail)
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900
For industrial control systems security information and incident reporting:
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