Now on Demand: Threat Detection and Incident Response (TDIR) Summit - All Sessions Available
Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

ICS/OT

Automated Logic Patches Flaws in Building Automation System

Kennesaw, Georgia-based building automation systems provider Automated Logic has released updates for its WebCTRL product to address several vulnerabilities, including one rated high severity.

Kennesaw, Georgia-based building automation systems provider Automated Logic has released updates for its WebCTRL product to address several vulnerabilities, including one rated high severity.

WebCTRL is a building automation system used worldwide in commercial office buildings, mission-critical facilities, educational institutions, healthcare organizations, hotels, and government facilities.

Gjoko Krstic of Macedonia-based Zero Science Lab discovered arbitrary file write, privilege escalation and remote code execution vulnerabilities in some 6.x and 5.x versions of WebCTRL, i-VU and SiteScan products. The i-VU system made by Carrier (a sister company of Automated Logic) and the Liebert SiteScan product can be integrated with WebCTRL.

The most serious of the flaws, with a CVSS score of 8.3 and a risk index of ⅘ assigned by Zero Science Lab, is CVE-2017-9650, an unrestricted file upload issue that allows an authenticated attacker to upload malicious files and execute arbitrary code on the targeted system.

The security hole exists due to WebCTRL’s failure to verify add-on files (.addons and .war) uploaded via the uploadwarfile servlet. An attacker with access to the system, including as an anonymous user, can upload malicious add-on files, which are automatically executed.

Related: Learn More at SecurityWeek’s 2017 ICS Cyber Security Conference

Another vulnerability that could lead to code execution is CVE-2017-9644. This weakness allows an authenticated, non-privileged local user to replace the application’s executable file with a malicious binary. When the application is started, the code in the malicious file gets executed with elevated privileges (i.e. the privileges of the targeted application).

This flaw is less serious as the attacker needs to be able to add their file to the system root path without being detected by the operating system or security products.

Advertisement. Scroll to continue reading.

The last vulnerability, CVE-2017-9640, allows an attacker with access to the management panel to abuse the ManualCommand() function to write and overwrite arbitrary files on the system, and traverse directories throughout the system. CVE-2017-9640 and CVE-2017-9644 have been classified as medium severity.

The affected vendors have released patches to address the vulnerabilities in versions 6.x. Versions prior to 6.0 are no longer supported.

While Automated Logic does have a vulnerability disclosure program and encourages users to report flaws found in its products, Zero Science Lab claimed that the vendor did not respond after being contacted directly in late March. Researchers informed ICS-CERT about the security holes and the agency contacted Automated Logic, which only got in touch with the researchers in early August.

Zero Science Lab has published advisories for each of the vulnerabilities, including technical details and proof-of-concept (PoC) code.

Related: Siemens Patches Flaw in Building Automation Products

Related: Building Automation Products Vulnerable to Remote Attacks

Related: Serious Flaws Found in Lynxspring SCADA Product

Written By

Eduard Kovacs (@EduardKovacs) is a managing 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

Trending

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.

Join the session as we discuss the challenges and best practices for cybersecurity leaders managing cloud identities.

Register

SecurityWeek’s Ransomware Resilience and Recovery Summit helps businesses to plan, prepare, and recover from a ransomware incident.

Register

People on the Move

Wendy Zheng named as CFO and Joe Diamond as CMO at cyber asset management firm Axonius.

Intelligent document processing company ABBYY has hired Clayton C. Peddy as CISO.

Digital executive protection services provider BlackCloak has appointed Ryan Black as CISO.

More People On The Move

Expert Insights