CVE-2022-1797

Rockwell Automation Logix Controllers Uncontrolled Resource Consumption

Description

A malformed Class 3 common industrial protocol message with a cached connection can cause a denial-of-service condition in Rockwell Automation Logix Controllers, resulting in a major nonrecoverable fault. If the target device becomes unavailable, a user would have to clear the fault and redownload the user project file to bring the device back online.

Remediation

Solution:

  • Rockwell Automation recommends users update to the latest firmware version to mitigate this vulnerability. Users are directed towards the risk mitigation provided below and are encouraged (where possible) to combine these with the general security guidelines below to employ multiple strategies simultaneously. Users should go to Rockwell Automation's Product Compatibility & Download Center to download the latest firmware. CompactLogix 5380, Compact GuardLogix 5380, CompactLogix 5480, ControlLogix 5580, GuardLogix 5580: Upgrade to v33.011 firmware CompactLogix 5370, Compact GuardLogix 5370, ControlLogix 5570, GuardLogix 5570: Upgrade to v34.011 firmware Please see Rockwell Automation’s security advisory PN1596 for more information. https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559

Workaround:

  • If upgrading is not possible, Rockwell Automation recommends the following mitigations: Use of Microsoft AppLocker or other similar allow list applications can help mitigate risk. Information on using AppLocker with products from Rockwell Automation is available in Knowledgebase article QA17329. Confirm the least-privilege user principle is followed, and user/service account access to shared resources (such as a database) is only granted with a minimum number of rights as needed. Please see Rockwell Automation’s security advisory PN1596 for more information. https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory custhelp.com
Affected: Rockwell Automation CompactLogix 5380 controllers
Affected: Rockwell Automation Compact GuardLogix 5380 controllers
Affected: Rockwell Automation CompactLogix 5480 controllers
Affected: Rockwell Automation ControlLogix 5580 controllers
Affected: Rockwell Automation GuardLogix 5580 controllers
Affected: Rockwell Automation CompactLogix 5370 controllers
Affected: Rockwell Automation Compact GuardLogix 5370 controllers
Affected: Rockwell Automation ControlLogix 5570 controllers
Affected: Rockwell Automation GuardLogix 5570 controllers
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-01 third party advisory us government resource
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559 vendor advisory permissions required

Frequently Asked Questions

What is the severity of CVE-2022-1797?
CVE-2022-1797 has been scored as a medium severity vulnerability.
How to fix CVE-2022-1797?
To fix CVE-2022-1797: Rockwell Automation recommends users update to the latest firmware version to mitigate this vulnerability. Users are directed towards the risk mitigation provided below and are encouraged (where possible) to combine these with the general security guidelines below to employ multiple strategies simultaneously. Users should go to Rockwell Automation's Product Compatibility & Download Center to download the latest firmware. CompactLogix 5380, Compact GuardLogix 5380, CompactLogix 5480, ControlLogix 5580, GuardLogix 5580: Upgrade to v33.011 firmware CompactLogix 5370, Compact GuardLogix 5370, ControlLogix 5570, GuardLogix 5570: Upgrade to v34.011 firmware Please see Rockwell Automation’s security advisory PN1596 for more information. https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559
Is CVE-2022-1797 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-1797 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-2022-1797?
CVE-2022-1797 affects Rockwell Automation CompactLogix 5380 controllers, Rockwell Automation Compact GuardLogix 5380 controllers, Rockwell Automation CompactLogix 5480 controllers, Rockwell Automation ControlLogix 5580 controllers, Rockwell Automation GuardLogix 5580 controllers, Rockwell Automation CompactLogix 5370 controllers, Rockwell Automation Compact GuardLogix 5370 controllers, Rockwell Automation ControlLogix 5570 controllers, Rockwell Automation GuardLogix 5570 controllers.
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