Unpatched RCE Bug Allows Ind & Utility Takeovers

By   ISBuzz Team
Writer , Information Security Buzz | Jul 15, 2021 05:12 am PST


A new vulnerability applies to a family of Schneider Electric programmable logic controllers (PLCs) widely used in manufacturing and commercial controllers.  In a report released Tuesday, researchers at Armis dubbed the vulnerability “ModiPwn” because it takes advantage of undocumented commands in the Schneider Modicon device code of the M340, M580 and other models in the Modicon series of controllersNo Simple Patch Available: Schneider has released a set of mitigations for the bug but no one patch is available. 

Notify of
1 Expert Comment
Oldest Most Voted
Inline Feedbacks
View all comments
Ron Bradley
InfoSec Expert
July 15, 2021 1:19 pm

<p>The Schneider critical RCE vulnerability should come as a stark reminder for those reliant on Industrial Control Systems (ICS) to ensure they are following best practices starting with the physical and/or firewall hardened segmentation between OT and business networks.  Having a thoroughly documented asset inventory is an absolute must when it comes to preparing for and responding this type of event.</p>
<p>Policies and standards should be developed on the guidance laid out in IEC62443. Regular testing and on-going monitoring of OT networks is imperative.  Finally, a comprehensive incident response plan can mean the difference between a disaster or a drill.</p>

Last edited 2 years ago by Ron Bradley

Recent Posts

Would love your thoughts, please comment.x