PT-2021-09: Possibility of authorization in Remote Password mechanism using password hash FX5U(C) CPU and FX5UJ CPU modules Severity level Severity level: Medium Impact: Possibility of authorization in Remote Password mechanism using password hash in FX5U(C) CPU and FX5UJ CPU modules Access Vector: Remote CVSS v3.0 Base Score: 5,9 Vector: (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) CVE-2022-25156 Vulnerability description:The vulnerability of the FX5U(C) CPU and FX5UJ CPU modules of Mitsubishi Electric FA products is associated with the possibility of using a weak password hash. Exploiting the vulnerability may allow an attacker to use the resulting hash value to recover the password value. Advisory status 15.12.2021 - Vendor gets vulnerability details 31.03.2022 - Security advisory publication date (https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-031_en.pdf ) Credits The vulnerability was detected by Dmitry Sklyarov and Anton Dorfman (Positive Technologies)