Summary
APOGEE PXC and TALON TC Series (BACnet) Devices devices start sending unsolicited BACnet broadcast messages after processing a specific BACnet createObject request. This could allow an attacker residing in the same BACnet network to send a specially crafted message that results in a partial denial of service condition of the targeted device, and potentially reduce the availability of BACnet network. A power cycle is required to restore the device's normal operation.
Siemens recommends countermeasures for products where fixes are not, or not yet available.
Vulnerabilities 1
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Medium 4.7
A vulnerability has been identified in APOGEE PXC+TALON TC Series (BACnet) (All versions). Affected devices start sendi…
Revision history
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#1
Publication Date
References
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SSA-718393: Partial Denial of Service Vulnerability in APOGEE PXC and TALON TC Series (BACnet) Devices - HTML Version
https://cert-portal.siemens.com/productcert/html/ssa-718393.html
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ICS Advisory ICSA-25-135-14 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-25-135-14
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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