CVE-2016-9334 Information disclosure in Rockwell Automation MicroLogix 1100 and 1400

High 7.3 Published 13 Feb 2017 Updated 6 Aug 2024

Attackers can intercept clear-text credentials from the web interface, potentially leading to unauthorized access to the 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-2016-9334?

CVE-2016-9334 is a high-severity vulnerability in Rockwell Automation MicroLogix 1100 and 1400, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 controller 1763-L16AWA, Series A and B, Version 14.000 and prior versions; 1763-L16BBB, Series A and B, Version 14.000 and prior versions; 1763-L16BWA, Series A and B, Version 14.000 and prior versions; and 1763-L16DWD, Series A and B, Version 14.000 and prior versions. User credentials are sent to the web server in clear text, which may allow an attacker to discover the credentials if they are able to observe traffic between the web browser and the server.

Which versions are affected by CVE-2016-9334?

It affects 20 products.

Products include Rockwellautomation 1763-L16awa Series A, Rockwellautomation 1763-L16awa Series B, Rockwellautomation 1763-L16bbb Series A, Rockwellautomation 1763-L16bbb Series B, Rockwellautomation 1763-L16bwa Series A, Rockwellautomation 1763-L16bwa Series B and 14 more.

How do I fix CVE-2016-9334?

No fix has been published for CVE-2016-9334 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-9334 being exploited?

There is no known exploitation of CVE-2016-9334 in the wild and no public exploit code.

Sources

Also known as GHSA-5gp2-93fx-fgr5.