Overview
- 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.
- Source
- cybersecurity@ch.abb.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.6
- Impact score
- 4
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:abb:pm573-eth:2.0:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E50EDB62-28E9-42DB-A6D5-8F08050FD882"
},
{
"criteria": "cpe:2.3:h:abb:pm583-eth:2.0:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "5BEC2866-83F4-4546-9B1D-395E0AA0B2F1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:abb:ac500_cpu_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A6EEF8FD-379B-4D13-985D-A812C6627CE7",
"versionEndExcluding": "2.8.5"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]