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High 8.8
AutomationDirect DirectLogic H2-DM1E Session Fixation
The H2-DM1E PLC's authentication protocol appears to utilize either a custom encoding scheme or a challenge-response protocol. However, there's an observed anomaly in the H2-DM1E PLC's protocol execution, namely its acceptance of multiple distinct packets as …
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High 8.8
AutomationDirect DirectLogic H2-DM1E Authentication Bypass by Capture-replay
The session hijacking attack targets the application layer's control mechanism, which manages authenticated sessions between a host PC and a PLC. During such sessions, a session key is utilized to maintain security. However, if an attacker captures this sessi…