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AUSCERT External Security Bulletin Redistribution
ESB-2022.3248
Advisory (icsa-22-181-04) Distributed Data Systems WebHMI
4 July 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Distributed Data Systems WebHMI
Publisher: ICS-CERT
Operating System: Network Appliance
Virtualisation
Resolution: Mitigation
CVE Names: CVE-2022-2254 CVE-2022-2253
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-22-181-04
Comment: CVSS (Max): 9.1 CVE-2022-2253 (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVSS Source: ICS-CERT
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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ICS Advisory (ICSA-22-181-04)
Distributed Data Systems WebHMI
Original release date: June 30, 2022
Legal Notice
All information products included in https://us-cert.cisa.gov/ics 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 https://us-cert.cisa.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 9.1
o ATTENTION: Exploitable remotely/low attack complexity/public exploits are
available
o Vendor: Distributed Data Systems
o Equipment: WebHMI
o Vulnerabilities: Cross-site Scripting, OS Command Injection
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow a user with
administrative privileges in WebHMI to execute arbitrary OS commands or impact
other logged in users.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of WebHMI are affected:
o WebHMI 4.1.1.7662 (and possibly prior versions)
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE
SCRIPTING') CWE-79
A user with administrative privileges in WebHMI can store a script that could
impact other logged in users.
CVE-2022-2254 has been assigned to this vulnerability. A CVSS v3 base score of
6.2 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:R/S:C/
C:H/I:N/A:N ).
3.2.2 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS
COMMAND INJECTION') CWE-78
A user with administrative privileges in WebHMI may send OS commands to execute
on the host server.
CVE-2022-2253 has been assigned to this vulnerability. A CVSS v3 base score of
9.1 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:N/S:C/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical
Manufacturing, Food and Agriculture, Water and Wastewater Systems
o COUNTRIES/AREAS DEPLOYED: Europe and North America
o COMPANY HEADQUARTERS LOCATION: Ukraine
3.4 RESEARCHER
Antonio Cuomo reported these vulnerabilities to Distributed Data Systems and
CISA.
4. MITIGATIONS
Contact Distributed Data Systems for additional details regarding these
vulnerabilities and their mitigations.
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability these vulnerabilities. Specifically, users
should:
o Minimize network exposure for all control system devices and/or systems,
and ensure they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls and
isolate them from business networks.
o When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize VPN is only
as secure as its connected devices.
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices
on the ICS webpage at cisa.gov/ics . 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
on the ICS webpage at cisa.gov/ics in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves
from social engineering attacks:
o Do not click web links or open attachments in unsolicited email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA 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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