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AUSCERT External Security Bulletin Redistribution
ESB-2021.2877
Advisory (icsa-21-236-02) Hitachi ABB Power Grids Utility
Retail Operations and CSB Products
26 August 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Hitachi ABB Power Grids Utility Retail Operations and CSB Products
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-35529
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-21-236-02
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ICS Advisory (ICSA-21-236-02)
Hitachi ABB Power Grids Utility Retail Operations and CSB Products
Original release date: August 24, 2021
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 7.7
o ATTENTION: Exploitable remotely
o Vendor: Hitachi ABB Power Grids
o Equipment: Retail Operations and Counterparty Settlement Billing (CSB)
o Vulnerability: Insufficiently Protected Credentials
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to access
database credentials, shut down the product, and access or alter system data.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Hitachi ABB Power Grids reports this vulnerability affects the following
utility usage and billing software products:
o Retail Operations: All Versions 5.7.2 and prior
o Counterparty Settlement and Billing (CSB): All Versions 5.7.2 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 INSUFFICIENTLY PROTECTED CREDENTIALS CWE-522
An attacker who has gained access to an authorized user's computer could
exploit this vulnerability to access database credentials and gain read/edit
access to application data.
CVE-2021-35529 has been assigned to this vulnerability. A CVSS v3 base score of
7.7 has been calculated; the CVSS vector string is ( AV:N/AC:H/PR:H/UI:N/S:C/
C:H/I:H/A:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Switzerland
3.4 RESEARCHER
4. MITIGATIONS
Hitachi ABB Power Grids recommends updating to Version 5.7.3 or later, which
resolves this vulnerability. For more information on this advisory, see the
Hitachi ABB Power Grids security advisory or contact Hitachi ABB Power Grids .
Hitachi ABB Power Grids suggests recommended security practices, operating
systems hardening, and firewall configurations can help protect a user's
computer from the attacks. An entry point for this vulnerability is the
unsecured operating system on which the product is installed. Hitachi ABB Power
Grids recommends hardening the operating system accordingly.
o Follow the hardening guidelines published by The Center for Internet
Security (CIS).
o Routinely monitor the application process log for unrecognized user
sessions originating from outside the application.
For additional information, please see the following Hitachi ABB Power Grids
security advisories:
o Retail Operations
o Counterparty Settlement Billing (CSB)
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
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 on us-cert.cisa.gov . 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 on us-cert.cisa.gov 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.
No known public exploits specifically target this vulnerability. This
vulnerability has a high attack complexity.
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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