Summary
A vulnerability in the affected products could allow an unauthorized attacker with network access to the webserver of an affected device to perform a denial-of-service attack.
Siemens has released a new version for SINAMICS S210 (6SL5...) and recommends to update to the latest version. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
Vulnerabilities 1
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High 7.5
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC C…
Revision history
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#2
Added fixes for supported SIMATIC S7-1200 CP 1200 family, added fix version for SIMATIC CP1200 family and SIMATIC CP1500 family
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#1
Publication Date
References
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SSA-693975: Denial-of-Service Vulnerability in the Web Server of Industrial Products - HTML Version
https://cert-portal.siemens.com/productcert/html/ssa-693975.html
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SSA-693975: Denial-of-Service Vulnerability in the Web Server of Industrial Products - PDF Version
https://cert-portal.siemens.com/productcert/pdf/ssa-693975.pdf
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SSA-693975: Denial-of-Service Vulnerability in the Web Server of Industrial Products - TXT Version
https://cert-portal.siemens.com/productcert/txt/ssa-693975.txt
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ICS Advisory ICSA-23-348-08 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-08
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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