CVE-2022-46670 Rockwell Automation MicroLogix 1100 & 1400 Vulnerable to Cross-Site Scripting Attack

High 7.1 Published Updated

An attacker can inject malicious scripts via SNMP into the embedded webserver of MicroLogix controllers, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2022-46670?

CVE-2022-46670 is a high-severity cross-site scripting vulnerability in Rockwell Automation MicroLogix 1100 & 1400 Controllers, published on 16 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Rockwell Automation was made aware of a vulnerability by a security researcher from Georgia Institute of Technology that the MicroLogix 1100 and 1400 controllers contain a vulnerability that may give an attacker the ability to accomplish remote code execution.  The vulnerability is an unauthenticated stored cross-site scripting vulnerability in the embedded webserver. The payload is transferred to the controller over SNMP and is rendered on the homepage of the embedded website.

Weakness: CWE-79

Which versions are affected by CVE-2022-46670?

It affects 5 products.

Products include Rockwellautomation Micrologix 1100 Firmware, Rockwellautomation Micrologix 1400-a Firmware, Rockwellautomation Micrologix 1400-B Firmware, Rockwellautomation Micrologix 1400-C Firmware, Rockwellautomation Micrologix 1400 Firmware.

How do I fix CVE-2022-46670?

No fix has been published for CVE-2022-46670 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2022-46670 being exploited?

There is no known exploitation of CVE-2022-46670 in the wild and no public exploit code.

Sources

Also known as GHSA-x7wf-5vvq-hf3f.

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