Vulnerability in Rockwellautomation Micrologix 1100
CVE-2020-6990
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.
EPSS: 0.044 (90.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Rockwellautomation Micrologix_1100
- Rockwellautomation Micrologix_1100_firmware
- Rockwellautomation Micrologix_1400
- Rockwellautomation Micrologix_1400_a_firmware
- Rockwellautomation Micrologix_1400_b_firmware
- Rockwellautomation Rslogix_500
- N/a Rockwell Automation Micrologix 1400 Controllers Series B V21.001 And Prior, A, All Versions, 1100 Controller, Rslogix 500 Software V12.001 Prior — versions 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
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-6990?
- CVE-2020-6990 is a critical-severity vulnerability in Rockwellautomation Micrologix 1100, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2020-03-16.
- How severe is CVE-2020-6990?
- Critical severity. CVSS v3 base score is 9.8 out of 10.