Use of a One-Way Hash with a Predictable Salt in Modicon M221 - CVE-2020-28214
Published: November 19, 2020 / Updated: December 10, 2020
Vulnerability identifier: #VU48922
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-28214
CWE-ID: CWE-760
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a use of a one-way hash with a predictable salt. A local user can pre-compute the hash value using a dictionary attack, effectively disabling the protection that an unpredictable salt would provide.
Affected software
Modicon M221
How to mitigate CVE-2020-28214
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.