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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2582 Advisory (icsa-21-210-01) Hitachi ABB Power Grids eSOMS 30 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Hitachi ABB Power Grids eSOMS Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-35527 Original Bulletin: https://us-cert.cisa.gov/ics/advisories/icsa-21-210-01 - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-21-210-01) Hitachi ABB Power Grids eSOMS Original release date: July 29, 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 7.5 o ATTENTION: Low attack complexity o Vendor: Hitachi ABB Power Grids o Equipment: eSOMS o Vulnerability: Insufficiently Protected Credentials 2. RISK EVALUATION Successful exploitation of this vulnerability could allow access to user credentials that are stored by the browser. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Hitachi ABB Power Grids reports this vulnerability affects the following product: o eSOMS: All Versions 6.3 and prior 3.2 VULNERABILITY OVERVIEW 3.2.1 INSUFFICIENTLY PROTECTED CREDENTIALS CWE-522 The web application password field allows a browser to store user credentials, which may allow an attacker who gains control of the users' system, or successfully exploits a cross site scripting vulnerability in another application, to capture stored passwords. CVE-2021-35527 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/ C:H/I:N/A:N ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Energy o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Switzerland 3.4 RESEARCHER Hitachi ABB Power Grids reported this vulnerability to CISA. 4. MITIGATIONS Hitachi ABB Power Grids recommends users update to Version 6.3.1 or later. Hitachi ABB Power Grids also recommends implementing security best practices and firewall configurations, which help protect a process control network from attacks that originate from outside the network. Such practices include: o Ensuring critical applications and systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall. o Firewalls should be configured to have the minimum number of ports exposed and open ports should be justified and documented. o Critical systems should not be used for Internet surfing, instant messaging, or receiving e-mails. o Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. o It is important to implement robust security awareness training to ensure users can identify common attacks or content such as phishing emails or malicious webpages. For more information on this issue, see the Hitachi ABB Power Grid Security Advisory . CISA recommends users take the following measures to protect themselves from social engineering attacks: o Do not click web links or open unsolicited attachments in 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. 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 is not exploitable remotely. 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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