CVE-2020-6988
7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD
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, 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.
Affected (4)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| All versions | |
| Up to 21.001 |
| Running on/with | Platform Versions |
|---|---|
Rockwellautomation Micrologix 1400 | All versions |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Rockwellautomation Micrologix 1100 | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Up to 12.001 |
Related CWEs
CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-603
Use of Client-Side Authentication
A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.
References (2)
Source: ics-cert@hq.dhs.gov
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource
Timeline
No history available yet.