CVE-2025-5310 Overview
Dover Fueling Solutions ProGauge MagLink LX Consoles expose an undocumented and unauthenticated Target Communication Framework (TCF) interface on a specific port. This critical vulnerability allows remote attackers to interact with the console without any authentication, enabling file creation, deletion, or modification operations that can potentially lead to remote code execution on affected industrial control system devices.
Critical Impact
Unauthenticated remote attackers can achieve full system compromise through arbitrary file manipulation, potentially disrupting fuel management operations at critical infrastructure facilities.
Affected Products
- Dover Fueling Solutions ProGauge MagLink LX Console
Discovery Timeline
- 2025-06-27 - CVE-2025-5310 published to NVD
- 2025-09-04 - Last updated in NVD database
Technical Details for CVE-2025-5310
Vulnerability Analysis
This vulnerability stems from the exposure of an undocumented Target Communication Framework (TCF) interface that lacks any authentication mechanism. TCF is a vendor-agnostic framework typically used for embedded system debugging and communication, which should never be exposed to untrusted networks without proper access controls.
The ProGauge MagLink LX Console, used in fuel management and tank monitoring systems, exposes this interface on a network-accessible port. Without authentication requirements, any network-adjacent or remotely accessible attacker can connect to the TCF interface and execute privileged operations.
The vulnerability is classified under CWE-306 (Missing Authentication for Critical Function), which represents one of the most dangerous vulnerability classes in industrial control systems. The ability to create, delete, or modify files on the system provides attackers with multiple pathways to achieve persistent remote code execution.
Root Cause
The root cause of CVE-2025-5310 is the Missing Authentication for Critical Function (CWE-306) in the TCF interface implementation. The ProGauge MagLink LX Console firmware fails to implement any authentication layer for the TCF service, allowing unauthorized access to privileged system operations. This represents a fundamental design flaw where a debug or maintenance interface was deployed to production systems without appropriate security controls.
Attack Vector
The attack vector is network-based, requiring no user interaction or prior authentication. An attacker with network access to the affected port can:
- Connect directly to the exposed TCF interface
- Enumerate available operations and system capabilities
- Leverage file manipulation primitives to write malicious payloads
- Achieve remote code execution by overwriting critical system files or placing executable content in appropriate locations
The TCF protocol provides extensive system access capabilities that, when combined with the lack of authentication, enable complete system compromise. Attackers may upload malicious scripts, modify configuration files, or replace legitimate binaries to establish persistent access to the fuel management console.
Detection Methods for CVE-2025-5310
Indicators of Compromise
- Unexpected network connections to uncommon TCP ports on MagLink LX Console devices
- Unusual file system activity including creation or modification of system files
- Changes to console configuration files or firmware components
- New or unauthorized executable files appearing on the system
- Log entries indicating TCF protocol communications from unexpected source addresses
Detection Strategies
- Monitor network traffic to ProGauge MagLink LX Consoles for TCF protocol activity from untrusted sources
- Implement network segmentation monitoring to detect traffic crossing ICS network boundaries
- Deploy file integrity monitoring on MagLink LX Console systems to detect unauthorized modifications
- Establish baseline network communication patterns for fuel management systems and alert on deviations
Monitoring Recommendations
- Implement deep packet inspection for ICS protocols targeting fuel management infrastructure
- Configure alerting for any external network connections to MagLink LX Console management ports
- Monitor authentication logs and access attempts on related network infrastructure
- Conduct regular vulnerability scans of OT network segments to identify exposed TCF interfaces
How to Mitigate CVE-2025-5310
Immediate Actions Required
- Isolate ProGauge MagLink LX Consoles from untrusted networks immediately
- Implement network segmentation to restrict access to the TCF interface port
- Apply firewall rules to block external access to the vulnerable service
- Review network logs for evidence of prior exploitation attempts
Patch Information
Organizations should consult the CISA ICS Advisory ICSA-25-168-05 for the latest remediation guidance from Dover Fueling Solutions. Contact the vendor directly for firmware updates that address this vulnerability.
Workarounds
- Disable the TCF interface if it is not required for operational purposes
- Implement strict network access controls limiting connections to authorized management workstations only
- Deploy a VPN or jump host architecture for any required remote management access
- Place affected devices behind an industrial firewall with deny-by-default policies
- Monitor all network traffic to affected systems until patches can be applied
# Example firewall rule to restrict TCF interface access (adjust port as needed)
# Block external access to TCF service port on MagLink LX devices
iptables -A INPUT -p tcp --dport <TCF_PORT> -s ! <TRUSTED_MGMT_NETWORK> -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
