Successful exploitation of this vulnerability could allow an attacker to disclose, tamper with, destroy, or delete information in the products, or cause a denial-of-service condition on the products.
Mitsubishi Electric reports that the following electrical discharge machines are affected by this vulnerability in Microsoft Message Queuing service:
Remote code execution vulnerability due to Microsoft Message Queuing service on Microsoft Windows exists in electrical discharge machines.
CVE-2023-21554 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2023-21554. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
Mitsubishi Electric reported this vulnerability to CISA.
Mitsubishi Electric recommends that users install the Special Modification Patch BRD-C62W003-A0 on their system. For information about how to install the update program, please contact your local service center.
Mitsubishi Electric recommends taking the mitigations listed below to minimize the risk of exploitation of this vulnerability.
For specific update instructions and additional details refer to Mitsubishi Electric advisory 2023-022.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability) has been reported to CISA at this time.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-21554
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-21554
cwe.mitre.org/data/definitions/20.html
github.com/cisagov/CSAF
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us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/resources-tools/resources/ics-recommended-practices
www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
www.cisa.gov/topics/industrial-control-systems
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