Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

ICS/OT

Schneider Electric Patches Critical Flaw in HMI Products

Schneider Electric has released updates for its InduSoft Web Studio and InTouch Machine Edition products to address a critical vulnerability that can be exploited for remote code execution.

Schneider Electric has released updates for its InduSoft Web Studio and InTouch Machine Edition products to address a critical vulnerability that can be exploited for remote code execution.

InduSoft Web Studio allows organizations to develop human-machine interfaces (HMIs), supervisory control and data acquisition (SCADA) systems and embedded instrumentation solutions. The Wonderware InTouch product, which is used in over one-third of the world’s industrial facilities, is an HMI visualization software. The products are used in various industries, including manufacturing, water and wastewater, automotive, oil and gas, building automation, and energy.

Aaron Portnoy, former CTO and founder of Exodus Intelligence and current employee of Raytheon, discovered that the products are affected by a critical stack-based buffer overflow vulnerability (CVE-2017-14024) that allows a remote attacker to execute arbitrary code with elevated privileges.

“InduSoft Web Studio and InTouch Machine Edition provide the capability for an HMI client to subscribe to tags and monitor their values,” Schneider Electric explained in its advisory. “A remote malicious entity could send a carefully crafted packet to exploit a stack-based buffer overflow vulnerability during tag subscription, with potential for code to be executed. The code would be executed under high privileges and could lead to a complete compromise of the InduSoft Web Studio or InTouch Machine Edition server machine.”

The vulnerability affects InduSoft Web Studio 8.0 SP2 Patch 1 and prior, and InTouch Machine Edition 8.0 SP2 Patch 1 and prior. Patches are included in version 8.1 of the products.

According to ICS-CERT, an exploit for the flaw is publicly available and only low-level hacking skills are required for exploitation.

This is not the only critical flaw discovered by Portnoy in the two Schneider Electric products. In September, ICS-CERT and the vendor warned users of a serious missing authentication issue that also allowed attackers to execute arbitrary code and possibly take complete control of affected servers.

Back in 2012, the researcher reported finding nearly two dozen security holes in ICS products from Rockwell Automation, Schneider, InduSoft (which at the time was not owned by Schneider), RealFlex and Eaton.

Related: Hundreds of Java Flaws Patched by Schneider in Trio TView Software

Related: Schneider Electric, Claroty Partner on Industrial Network Security

Related: Researchers Disclose Unpatched Flaws in Schneider Electric PLCs

Related: Schneider Electric Patches Flaws in Modicon, Wonderware Products

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Expert Insights

Related Content

CISO Strategy

Cybersecurity-related risk is a top concern, so boards need to know they have the proper oversight in place. Even as first-timers, successful CISOs make...

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

IoT Security

Lexmark warns of a remote code execution (RCE) vulnerability impacting over 120 printer models, for which PoC code has been published.

ICS/OT

Otorio has released a free tool that organizations can use to detect and address issues related to DCOM authentication.

Mobile & Wireless

Apple rolled out iOS 16.3 and macOS Ventura 13.2 to cover serious security vulnerabilities.

Email Security

Microsoft is urging customers to install the latest Exchange Server updates and harden their environments to prevent malicious attacks.

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.

Mobile & Wireless

Technical details published for an Arm Mali GPU flaw leading to arbitrary kernel code execution and root on Pixel 6.