CVE-2009-0216 in iFIX
Summary
by MITRE
GE Fanuc iFIX 5.0 and earlier relies on client-side authentication involving a weakly encrypted local password file, which allows remote attackers to bypass intended access restrictions and start privileged server login sessions by recovering a password or by using a modified program module.
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Analysis
by VulDB Data Team • 11/29/2024
The vulnerability described in CVE-2009-0216 represents a critical security flaw in GE Fanuc iFIX 5.0 and earlier versions that fundamentally undermines the system's authentication mechanism. This industrial control system software, widely used in manufacturing and process control environments, implements a client-side authentication model that relies on locally stored password credentials. The weakness lies in the implementation of password encryption, which employs insufficient cryptographic strength to protect sensitive authentication data. The vulnerability affects the core security architecture of the software by creating a pathway for unauthorized access that bypasses normal access controls and privilege enforcement mechanisms. This represents a significant risk to industrial control systems where unauthorized access could lead to operational disruptions, safety hazards, or security breaches in critical infrastructure environments.
The technical flaw manifests through the use of weakly encrypted local password files that store authentication credentials in a manner susceptible to recovery by unauthorized parties. Attackers can exploit this weakness through multiple approaches including password recovery techniques that leverage the insufficient encryption strength, or by modifying program modules to circumvent the authentication process entirely. The vulnerability demonstrates poor implementation of cryptographic practices and inadequate security controls for credential storage. This weakness directly relates to CWE-310, which addresses cryptographic weaknesses in authentication systems, specifically focusing on insufficient encryption strength and weak cryptographic algorithms. The flaw also connects to CWE-287, which covers improper authentication mechanisms, highlighting how the system fails to properly validate user credentials through secure authentication channels.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass serious threats to industrial process control systems. Remote attackers who successfully exploit this vulnerability can establish privileged server login sessions that provide them with elevated access rights and control over the industrial processes managed by iFIX software. This capability enables attackers to potentially manipulate process controls, alter operational parameters, or disrupt critical manufacturing processes that depend on these systems. The vulnerability is particularly concerning in environments where industrial control systems operate without proper network segmentation or additional security controls, as it allows attackers to gain unauthorized access from remote locations. The implications for operational technology environments are severe, as unauthorized access to control systems can lead to production disruptions, safety incidents, or even physical damage to equipment and facilities.
Mitigation strategies for this vulnerability must address both the immediate security gap and the underlying architectural issues that enabled the weakness. Organizations should immediately upgrade to GE Fanuc iFIX versions that address this vulnerability through stronger encryption methods and improved authentication mechanisms. The implementation of proper cryptographic practices, including the use of industry-standard encryption algorithms and secure credential storage methods, should be enforced. Additionally, network segmentation and access control measures should be implemented to limit exposure of these systems to unauthorized network access. Security monitoring and intrusion detection systems should be deployed to detect suspicious authentication attempts and unauthorized access patterns. The vulnerability also highlights the importance of following security best practices such as those outlined in the NIST Cybersecurity Framework and ISO/IEC 27001 standards for protecting industrial control systems. Organizations should also consider implementing multi-factor authentication mechanisms and regular security assessments to identify and remediate similar vulnerabilities in their industrial control environments.