CVE-2022-43377 Auth bypass in NetBotz 4 - 355/450/455/550/570

High 7.5 Published 18 Apr 2023 Updated 5 Feb 2025

Attackers can take over accounts via brute force attacks due to lack of authentication attempt restrictions on NetBotz devices.

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-2022-43377?

CVE-2022-43377 is a high-severity authentication bypass vulnerability in Schneider Electric NetBotz 4 - 355/450/455/550/570, published on 18 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause account takeover when a brute force attack is performed on the account.

Affected Products: NetBotz 4 - 355/450/455/550/570 (V4.7.0

and prior)

Weakness: CWE-307

Which versions are affected by CVE-2022-43377?

It affects 5 products.

Products include Schneider-Electric Netbotz 355 Firmware, Schneider-Electric Netbotz 450 Firmware, Schneider-Electric Netbotz 455 Firmware, Schneider-Electric Netbotz 550 Firmware, Schneider-Electric Netbotz 570 Firmware.

How do I fix CVE-2022-43377?

No fix has been published for CVE-2022-43377 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2022-43377 being exploited?

There is no known exploitation of CVE-2022-43377 in the wild and no public exploit code.

Sources

Also known as GHSA-j893-r6jv-55xv.