CVE-2021-22789
MediumSummary
Występuje podatność CWE-119: Niewłaściwe ograniczenie operacji w granicach bufora pamięci, która może spowodować Denial of Service na kontrolerze/symulatorze Modicon PLC podczas aktualizacji aplikacji kontrolera za pomocą specjalnie przygotowanego pliku projektu. Dotyczy to różnych modeli kontrolerów Modicon M580, M340, MC80, Momentum Ethernet, Quantum oraz Premium, a także symulatorów PLC dla EcoStruxure.
Risk Assessment
Podatność ta może prowadzić do awarii systemu, co w konsekwencji może zakłócić działanie procesów przemysłowych i spowodować przestoje w produkcji. Organizacje powinny być świadome ryzyka związanego z używaniem podatnych wersji oprogramowania.
Recommendation
Zaleca się aktualizację oprogramowania kontrolerów i symulatorów do najnowszych wersji, które eliminują tę podatność. Należy również przeprowadzić audyt używanych projektów, aby zidentyfikować potencjalnie niebezpieczne pliki.
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Original NVD description (English source)
A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

