Vulnerability in Schneider-Electric Modicon M221
CVE-2020-28214
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Schneider-Electric Modicon M221
- Schneider-Electric Modicon M221 Firmware
- Modicon M221 (All References, All Versions) — versions Modicon M221 (all references, all versions)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.se.com/ww/en/download/document/SEVD-2020-315-05/ (Vendor Advisory)
- us-cert.cisa.gov/ics/advisories/icsa-20-343-04 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28214?
- CVE-2020-28214 is a medium-severity vulnerability in Schneider-Electric Modicon M221, classified under CWE-760. CVSS score: 5.5/10. Published 2020-12-11.
- How severe is CVE-2020-28214?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-28214 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.