Summary
The latest update for SIPROTEC 5 family devices fixes a vulnerability in the web interface which could allow unauthorized users to cause a Denial-of-Service situation by sending maliciously crafted web requests.
Siemens has released an update for the SIPROTEC 5 and recommends to update to the latest version.
Vulnerabilities 1
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Unscored —
A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 rel…
Revision history
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#3
Revision - Fixing typos
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#2
Removed CP200 from list of affected products
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#1
Publication Date
References
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SSA-500748: Denial-of-Service Vulnerabilities in SIPROTEC 5 Devices - TXT Version
https://cert-portal.siemens.com/productcert/txt/ssa-500748.txt
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SSA-500748: Denial-of-Service Vulnerabilities in SIPROTEC 5 Devices - PDF Version
https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdf
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ICS Advisory ICSA-21-257-16 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-21-257-16
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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/topics/industrial-control-systems
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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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B