PN1637 | Armor ™ PowerFlex ® Critical Fault Vulnerability

Affected Product	First Known in Firmware Revision	Corrected in Firmware Revision
Armor™ PowerFlex®	1.003	2.001 or later

Rockwell Automation used the latest version of the CVSS scoring system to assess the following vulnerabilities. The security of our products is important to us as your chosen industrial automation supplier.  This anomaly was found internally during routine testing and is being reported based on our commitment to customer transparency and to improve their business or production environments.

CVE-2023-2423 IMPACT
A vulnerability was discovered in Armor™ PowerFlex® when the product sends communications to the local event log. Threat actors could exploit this vulnerability by sending an influx of network commands, causing the product to generate an influx of event log traffic at a high rate. If exploited, the product would stop normal operations and self-reset. The error code would need to be cleared prior to resuming normal operations.

CVSS Base Score: 8.6
CVSS Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE- 682 Incorrect Calculation

Known Exploited Vulnerability (KEV) database: No

Customers can use Stakeholder-Specific Vulnerability Categorization to generate environment specific prioritization.

Customers using the affected versions are encouraged to apply the below risk mitigations and implement our suggested security best practices to minimize risk of this vulnerability in their environments.

• Update to the latest version of Armor™ PowerFlex® (2.001 or later).
• Implement QA43240 - Recommended Security Guidelines from Rockwell Automation.

Additional Resources

• JSON CVE-2023-2423