Vulnerability Details : 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.
Products affected by CVE-2020-28214
- cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-28214
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-28214
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2020-28214
-
The product uses a one-way cryptographic hash against an input that should not be reversible, such as a password, but the product uses a predictable salt as part of the input.Assigned by: cybersecurity@se.com (Primary)
References for CVE-2020-28214
-
https://www.se.com/ww/en/download/document/SEVD-2020-315-05/
Security Notification - Modicon M221 Programmable Logic Controller | Schneider ElectricVendor Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04
Schneider Electric Modicon M221 Programmable Logic Controller | CISAThird Party Advisory;US Government Resource
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