CVE-2020-28214

low-risk

Published 2020-12-11

A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.

Do I need to act?

0.06% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Modicon M221 Firmware

Affected Vendors

Schneider-Electric

References (4)

Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04

Vendor Advisory https://www.se.com/ww/en/download/document/SEVD-2020-315-05/

Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04

Vendor Advisory https://www.se.com/ww/en/download/document/SEVD-2020-315-05/

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal