#VU48922 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
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2020-28214
CWE-ID: CWE-760
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Modicon M221
Modicon M221
Software vendor:
Schneider Electric
Schneider Electric
Description
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.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.