CVE-2020-7565
A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 0.30% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-326
- Affected
- schneider-electric/modicon m221 firmware
- Source
- cybersecurity@se.com
References
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04Third Party Advisory, US Government Resource
- https://www.se.com/ww/en/download/document/SEVD-2020-315-05/Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04Third Party Advisory, US Government Resource
- https://www.se.com/ww/en/download/document/SEVD-2020-315-05/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.