Summary
Two null point dereference vulnerabilities affect multiple SIMATIC software products. These could allow an attacker to cause a persistent denial of service condition in the RPC Server of these products.
Siemens has released new versions for the affected products and recommends to update to the latest versions.
Vulnerabilities 2
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Medium 6.5
A vulnerability has been identified in OpenPCS 7 V9.1 (All versions < V9.1 SP2 UC05), SIMATIC BATCH V9.1 (All versions …
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Medium 6.5
A vulnerability has been identified in OpenPCS 7 V9.1 (All versions < V9.1 SP2 UC05), SIMATIC BATCH V9.1 (All versions …
Revision history
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#5
Added fix for SIMATIC PCS 7 V9.1, SIMATIC BATCH V9.1, OpenPCS 7 and SIMATIC Route Control V9.1
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#4
Added fix for SIMATIC WinCC Runtime Professional V18
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#3
Added fix for SIMATIC WinCC Runtime Professional V19 and corrected fix version of WinCC V8.0 from SP4 to Update4
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#2
Added a mitigation
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#1
Publication Date
References
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SSA-753746: Denial of Service Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - HTML Version
https://cert-portal.siemens.com/productcert/html/ssa-753746.html
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ICS Advisory ICSA-24-046-12 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-24-046-12
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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