CVE

CVE-2020-16231

Date: (C)2022-05-21   (M)2023-12-22

The affected Bachmann Electronic M-Base Controllers of version MSYS v1.06.14 and later use weak cryptography to protect device passwords. Affected controllers that are actively supported include MX207, MX213, MX220, MC206, MC212, MC220, and MH230 hardware controllers, and affected end-of-life controller include MC205, MC210, MH212, ME203, CS200, MP213, MP226, MPC240, MPC265, MPC270, MPC293, MPE270, and CPC210 hardware controllers. Security Level 0 is set at default from the manufacturer, which could allow an unauthenticated remote attacker to gain access to the password hashes. Security Level 4 is susceptible if an authenticated remote attacker or an unauthenticated person with physical access to the device reads and decrypts the password to conduct further attacks.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:		CVSS V2 Severity:
CVSS Score : 8.8		CVSS Score : 6.5
Exploit Score: 2.8		Exploit Score: 8.0
Impact Score: 5.9		Impact Score: 6.4
CVSS V3 Metrics:		CVSS V2 Metrics:
Attack Vector: NETWORK		Access Vector: NETWORK
Attack Complexity: LOW		Access Complexity: LOW
Privileges Required: LOW		Authentication: SINGLE
User Interaction: NONE		Confidentiality: PARTIAL
Scope: UNCHANGED		Integrity: PARTIAL
Confidentiality: HIGH		Availability: PARTIAL
Integrity: HIGH
Availability: HIGH

Reference:

https://www.cisa.gov/uscert/ics/advisories/icsa-21-026-02