Summary
Hitachi Energy is aware of a vulnerability that affects FOX61x product versions listed in this document. Successful exploitation of this vulnerability can lead to forgery attacks potentially causing impact on confidentiality, integrity and availability for the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. Note: This is applicable only if FOX61x devices are configured to use remote RADIUS authentication.
Vulnerabilities 1
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Critical 9.0
RADIUS Protocol under RFC2865 is vulnerable to forgery attacks.
RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authen…
Revision history
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#2
Initial CISA Republication of Hitachi Energy PSIRT 8DBD000225 advisory
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#1
Initial public release
References
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[1] 1KHW029042 FOX61x R18 Technical User Documentation / Management Communication with FOXCST (Access to Hitachi Energy Publisher is required).
https://publisher.hitachienergy.com/preview?DocumentID=1KHW029042&LanguageCode=en&DocumentPartId=R18&Action=launch
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Radius MD5 Vulnerability in Hitachi Energy FOX61x product
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000225&LanguageCode=en&DocumentPartId=&Action=launch
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ICS Advisory ICSA-26-036-06 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-26-036-06
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Recommended Practices
https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b