Vulnerability · Published Nov 19, 2020 · Assigned by schneider
CVE-2020-7566
High 7.1
In plain English
A high-severity security flaw in Modicon M221, all references, all versions. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A CWE-334: Small Space of Random Values vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Modicon M221, all references, all versions | Modicon M221, all references, all versions |
Weakness: CWE-334 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://www.se.com/ww/en/download/document/SEVD-2020-315-05/ x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04 x_refsource_MISC