Hard-Coded Cryptographic Key Vulnerability in Rockwell Automation Controllers
CVE-2020-6990

9.8CRITICAL

Key Information:

Vendor

Rockwellautomation

Status
Rockwell Automation Micrologix 1400 Controllers Series B V21.001 And Prior, Series A, All Versions, Micrologix 1100 Controller, All Versions, Rslogix 500 Software V12.001 And Prior
Vendor
CVE Published:
16 March 2020

What is CVE-2020-6990?

A vulnerability in Rockwell Automation's MicroLogix 1400 Controllers Series B (v21.001 and prior), Series A (all versions), MicroLogix 1100 Controller (all versions), and RSLogix 500 Software (v12.001 and prior) arises from a hard-coded cryptographic key within the RSLogix 500 binary file. This flaw allows an attacker to potentially extract cryptographic keys used in account password protection, which can facilitate further cryptographic attacks and may enable unauthorized remote access to the affected controllers.

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Affected Version(s)

Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all , MicroLogix 1100 Controller, all , RSLogix 500 Software v12.001 and prior Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior

References

https://www.us-cert.gov/ics/advisories/icsa-20-070-06
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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