CVE-2020-24685
CVSS V2 Medium 5
CVSS V3 High 8.6
Description
An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.
Overview
- CVE ID
- CVE-2020-24685
- Assigner
- cybersecurity@ch.abb.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-02-09T04:15:14
- Last Modified Date
- 2021-02-16T16:09:53
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:abb:ac500_cpu_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.8.5 | |
| cpe:2.3:h:abb:pm573-eth:2.0:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:abb:pm583-eth:2.0:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 8.6
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://search.abb.com/library/Download.aspx?DocumentID=3ADR010667&LanguageCode=en&DocumentPartId=&Action=Launch | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-24685 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24685 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:23:16 | Added to TrackCVE | |||
| 2022-12-05 21:37:37 | 2021-02-09T04:15Z | 2021-02-09T04:15:14 | CVE Published Date | updated |
| 2022-12-05 21:37:37 | 2021-02-16T16:09:53 | CVE Modified Date | updated | |
| 2022-12-05 21:37:37 | Analyzed | Vulnerability Status | updated |