CVE-2020-6998: Rockwell Automation CompactLogix 5370 and ControlLogix 5570 Controllers Improper Input Validation
The connection establishment algorithm found in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior does not sufficiently manage its control flow during execution, creating an infinite loop. This may allow an attacker to send specially crafted CIP packet requests to a controller, which may cause denial-of-service conditions in communications with other products.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is CVE-2020-6998?
CVE-2020-6998 is a vulnerability in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior that allows an attacker to create an infinite loop by sending specially crafted CIP packet requests.
What is the severity of CVE-2020-6998?
The severity of CVE-2020-6998 is high, with a CVSS score of 8.6.
How does CVE-2020-6998 affect Rockwell Automation products?
CVE-2020-6998 affects Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior.
How can an attacker exploit CVE-2020-6998?
An attacker can exploit CVE-2020-6998 by sending specially crafted CIP packet requests to the vulnerable Rockwell Automation devices.
Are there any fixes available for CVE-2020-6998?
Rockwell Automation has released firmware updates to address the vulnerability. Users are advised to update to the latest firmware version.