Summary
Successful exploitation of these vulnerabilities could allow unauthorized users to gain access to the MELSEC iQ-R/F/L series CPU modules and the MELSEC iQ-R series OPC UA server module or to view and execute programs or view project files without permissions.
Vulnerabilities 10
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Critical 9.1
Use of Hard-coded Cryptographic Key vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.095Z, and …
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High 8.6
Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.095…
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High 7.5
Use of Hard-coded Password vulnerability in Mitsubishi Electric Corporation GX Works3 versions from 1.015R to 1.095Z al…
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Medium 6.8
Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.087…
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Medium 6.8
Use of Hard-coded Cryptographic Key vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A and later allow…
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Medium 6.8
Use of Hard-coded Cryptographic Key vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A and later allow…
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Medium 6.8
Use of Hard-coded Cryptographic Key vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.090U, GT D…
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Medium 6.8
Insufficiently Protected Credentials vulnerability in Mitsubishi Electric Corporation GX Works3 versions 1.015R and lat…
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Medium 5.6
Use of Hard-coded Password vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A to 1.090U, GT Designer3 …
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Low 3.7
Cleartext Storage of Sensitive Information in Memory vulnerability in Mitsubishi Electric Corporation GX Works3 version…
Revision history
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#4
Update C - Added MT Works2 to Affected Products and Mitigations
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#3
Update B - Changes to affected products and mitigations
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#2
Update A - Changes to affected products, description of vulnerabilities, and mitigations
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#1
Initial Publication
References
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ICSA Advisory ICSA-22-333-05 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-22-333-05
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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/news-events/ics-alerts/ics-alert-10-301-01
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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/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b
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Recommended Practices
https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing
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Recommended Practices
https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks