CVE-2021-32926 Other in Micro800, MicroLogix 1400
An attacker can intercept password change requests to replace the new password hash, locking the legitimate user out of the PLC controller.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-32926?
CVE-2021-32926 is a medium-severity vulnerability in Micro800, MicroLogix 1400, published on 3 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition
Weakness: CWE-300
Which versions are affected by CVE-2021-32926?
It affects 2 products.
Products include Rockwellautomation Micro800 Firmware, Rockwellautomation Micrologix 1400 Firmware.
How do I fix CVE-2021-32926?
No fix has been published for CVE-2021-32926 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-32926 being exploited?
There is no known exploitation of CVE-2021-32926 in the wild and no public exploit code.
Sources
Also known as GHSA-h2f7-g9rh-rr7g.