CVE-2021-22681

Description

Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key to verify Logix controllers are communicating with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800. Rockwell Automation Studio 5000 Logix Designer Versions 21 and later and RSLogix 5000: Versions 16 through 20 are vulnerable because an unauthenticated attacker could bypass this verification mechanism and authenticate with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory cisa.gov
Affected: n/a Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllers
Published at:
Updated at:

References

Link Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-056-03 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-22681?
CVE-2021-22681 has been scored as a critical severity vulnerability.
How to fix CVE-2021-22681?
To fix CVE-2021-22681, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22681 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-22681 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22681?
CVE-2021-22681 affects n/a Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllers.
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