Description
CVE 2021-22681 https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.PN1550.html and send a specially crafted CIP message to the device. If exploited, a threat actor could help prevent access to the legitimate user and end connections to connected devices including the workstation. To recover the controllers, a download is required which ends any process that the controller is running.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Rockwell Automation / Compact GuardLogix 5380 SIL 2V31.011 – V31.011
- Rockwell Automation / Compact GuardLogix 5380 SIL 3V32.013 – V32.013
- Rockwell Automation / CompactLogix 5380V28.011 – V28.011
- Rockwell Automation / CompactLogix® 5480V32.011 – V32.011
- Rockwell Automation / ControlLogix® 5580V28.011 – V28.011
- Rockwell Automation / ControlLogix® 5580 ProcessV33.011 – V33.011
- Rockwell Automation / FactoryTalk® Logix EchoV33.011 – V33.011
- Rockwell Automation / GuardLogix 5580V31.011 – V31.011