Summary
Successful exploitation of this vulnerability could allow an attacker to log in to the Remote HMI feature, where the PLC may be factory reset, stopped, and restarted.
Vulnerabilities 1
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High 7.5
Unitronics Vision Standard Unauthenticated Password Retrieval
Unitronics Vision Standard line of controllers allow the Information Mode password to be retrieved without authentication.
Revision history
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#2
Update A - Added Unitronics mitigations.
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#1
Initial Publication
References
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ICSA Advisory ICSA-24-109-01 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-24-109-01
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Recommended Practices
https://www.cisa.gov/uscert/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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf
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Recommended Practices
https://www.cisa.gov/uscert/ncas/tips/ST04-014
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Recommended Practices
https://us-cert.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/uscert/ics/tips/ICS-TIP-12-146-01B