CVE-2020-7566
CVSS V2 Medium 4.3
CVSS V3 High 7.3
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.
Overview
- CVE ID
- CVE-2020-7566
- Assigner
- cybersecurity@se.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-11-19T22:15:15
- Last Modified Date
- 2022-02-03T16:14:24
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:schneider-electric:modicon_m221_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:M/Au:N/C:P/I:P/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 5.5
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.3
- Base Severity
- HIGH
- Exploitability Score
- 2.1
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://www.se.com/ww/en/download/document/SEVD-2020-315-05/ | Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04 | Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-7566 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7566 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:34:31 | Added to TrackCVE | |||
| 2022-12-05 17:08:12 | cybersecurity@schneider-electric.com | cybersecurity@se.com | CVE Assigner | updated |
| 2022-12-05 17:08:12 | 2020-11-19T22:15Z | 2020-11-19T22:15:15 | CVE Published Date | updated |
| 2022-12-05 17:08:12 | 2022-02-03T16:14:24 | CVE Modified Date | updated | |
| 2022-12-05 17:08:12 | Analyzed | Vulnerability Status | updated |