Description
The programming protocol allows for a previously entered password and lock state to be read by an attacker. If the previously entered password was successful, the attacker can then use the password to unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Automation Direct / CLICK PLC CPU Modules: C0-1x CPUsunspecified – 3.00
References
- VENDOR_ADVISORYhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02