CVEvulnerability

CVE-2020-6990

9.8 CRITICAL Published 2020-03-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-03-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-321, CWE-798

Description

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, The cryptographic key utilized to help protect the account password is hard coded into the RSLogix 500 binary file. An attacker could identify cryptographic keys and use it for further cryptographic attacks that could ultimately lead to a remote attacker gaining unauthorized access to the controller.

Affected configurations

• rockwellautomation micrologix 1400 a firmware • rockwellautomation micrologix 1400 b firmware (<= 21.001) • rockwellautomation micrologix 1100 firmware • rockwellautomation rslogix 500 (<= 12.001)

Related

Weakness · CWE (2)

  • CWE-321 Use of Hard-coded Cryptographic Key weakness
  • CWE-798 Use of Hard-coded Credentials weakness

References