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, A remote, unauthenticated attacker can send a request from the RSLogix 500 software to the victim’s MicroLogix controller. The controller will then respond to the client with used password values to authenticate the user on the client-side. This method of authentication may allow an attacker to bypass authentication altogether, disclose sensitive information, or leak credentials.
Project Subscriptions
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2020-28128 | 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, A remote, unauthenticated attacker can send a request from the RSLogix 500 software to the victim’s MicroLogix controller. The controller will then respond to the client with used password values to authenticate the user on the client-side. This method of authentication may allow an attacker to bypass authentication altogether, disclose sensitive information, or leak credentials. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://www.us-cert.gov/ics/advisories/icsa-20-070-06 |
|
History
Wed, 03 Jun 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Projects
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Status: PUBLISHED
Assigner: icscert
Published:
Updated: 2026-06-03T13:21:33.239Z
Reserved: 2020-01-14T00:00:00.000Z
Link: CVE-2020-6988
Updated: 2024-08-04T09:18:02.514Z
Status : Modified
Published: 2020-03-16T16:15:14.767
Modified: 2026-06-03T14:16:23.543
Link: CVE-2020-6988
No data.
OpenCVE Enrichment
No data.
EUVD