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AUSCERT External Security Bulletin Redistribution
ESB-2017.2587
Advisory (ICSA-17-285-03) Envitech Ltd. EnviDAS Ultimate
13 October 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: EnviDAS Ultimate
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-9625
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-17-285-03
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Advisory (ICSA-17-285-03)
Envitech Ltd. EnviDAS Ultimate
Original release date: October 12, 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 8.2
ATTENTION: Remotely exploitable/low skill level to exploit.
Vendor: Envitech Ltd.
Equipment: EnviDAS Ultimate
Vulnerability: Improper Authentication
AFFECTED PRODUCTS
The following versions of EnviDAS Ultimate, a web application for
environmental monitoring, are affected:
EnviDAS Ultimate Versions prior to v1.0.0.5
IMPACT
Successful exploitation of this vulnerability could allow an attacker to view
and edit settings without authenticating and execute code remotely.
MITIGATION
Envitech Ltd., recommends that users of affected versions update to the latest
version of v1.0.0.5 or newer. The update can be obtained by contacting
Envitech Ltd., support at the following email:
david.farhi@envitech.co.il (link sends e-mail)
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
IMPROPER AUTHENTICATION CWE-287
The web application lacks proper authentication which could allow an attacker
to view information and modify settings or execute code remotely.
CVE-2017-9625 has been assigned to this vulnerability. A CVSS v3 base score of
8.2 has been assigned; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).
RESEARCHER
Can Demirel and Deniz evik of Biznet Bilisim discovered the vulnerability and
tested the patch.
BACKGROUND
Critical Infrastructure Sectors: Commercial Facilities, Communications, Water
and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Israel
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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