Summary
Successful exploitation of these vulnerabilities could allow an attacker gaining Windows SYSTEM-level code execution on the service host and may cause the product to crash, leak sensitive information, or connect to the product without proper authentication.
Vulnerabilities 2
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Critical 9.1
Heap Based Buffer Overflow in PTC KEPServerEx
KEPServerEX is vulnerable to a buffer overflow which may allow an attacker to crash the product being accessed or leak information.
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High 7.5
Improper Validation of Certificate with Host Mismatch in PTC KEPServerEx
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
Revision history
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#1
Initial Publication
References
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ICSA Advisory ICSA-23-334-03 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-23-334-03
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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://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