Description
A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could cause unauthorized access in read and write mode to the controller when communicating over Modbus. Affected Products: EcoStruxure Control Expert Including all Unity Pro versions (former name of EcoStruxure Control Expert) (V15.0 SP1 and prior), EcoStruxure Process Expert, Including all versions of EcoStruxure Hybrid DCS (former name of EcoStruxure Process Expert) (V2021 and prior), Modicon M340 CPU (part numbers BMXP34*) (V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*) (V3.20 and prior).
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Schneider Electric / EcoStruxure Control ExpertSP1 – 15.0
- Schneider Electric / EcoStruxure™ Process ExpertV – 2021
- Schneider Electric / Modicon M340 CPUBMXP34 – 3.40
- Schneider Electric / Modicon M580 CPUBMEP – 3.20
- Schneider Electric / Modicon M580 CPUBMEH – 3.20