Franklin Fueling System EVO 550/5000

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1. EXECUTIVE SUMMARY

• CVSS v4 8.7
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Franklin Fueling System
• Equipment: EVO 550, EVO 5000
• Vulnerability: Path Traversal

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to read arbitrary files on the system.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Franklin Fueling System EVO 550 and EVO 5000, an automatic tank gauge (ATG), are affected:

• EVO 550: All versions prior to 2.26.3.8963
• EVO 5000: All versions prior to 2.26.3.8963

3.2 Vulnerability Overview

3.2.1 PATH TRAVERSAL: '/../FILEDIR' CWE-25

Franklin Fueling System EVO 550 and EVO 5000 are vulnerable to a Path Traversal vulnerability that could allow an attacker to access sensitive files on the system.

CVE-2024-2442 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has been calculated for CVE-2024-2442. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Transportation Systems
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Momen Eldawakhly of Samurai Digital Security Ltd reported this vulnerability to CISA.

4. MITIGATIONS

Franklin Fueling Systems released the following to fix this vulnerability:

• EVO 550: 2.26.3.8963
• EVO 5000: 2.26.3.8963

For more information, contact Franklin Fueling System.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• March 19, 2024: Initial Publication