Description (CNA)
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 valid authentication responses. This behavior deviates from standard security practices where a single, specific response or encoding pattern is expected for successful authentication.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| AutomationDirect / DirectLogic H2-DM1E | affected 0 through 2.8.0 |
CWE
CWE-384
References
ADP enrichment
No English description supplied.
No references supplied.