CVE-2002-0066 in Funk Software
Summary
by MITRE
Funk Software Proxy Host 3.x before 3.09A creates a Named Pipe that does not require authentication and is installed with insecure access control, which allows local and possibly remote users to use the Proxy Host s configuration utilities and gain privileges.
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Analysis
by VulDB Data Team • 06/16/2024
The vulnerability identified as CVE-2002-0066 affects Funk Software Proxy Host versions 3.x prior to 3.09A, representing a critical security flaw in the software's named pipe implementation. This issue stems from the improper configuration of system resources that should have been protected by authentication mechanisms. The named pipe created by the proxy host service lacks proper authentication requirements, creating an entry point that can be exploited by unauthorized users. The vulnerability is particularly concerning because it affects both local and potentially remote access vectors, expanding the attack surface significantly.
The technical flaw manifests in the insecure access control configuration of the named pipe, which is a fundamental Windows inter-process communication mechanism. When a named pipe is created without proper security descriptors, it can be accessed by any user account that has the necessary privileges to connect to the named pipe. This represents a classic case of inadequate privilege separation and access control enforcement. The vulnerability directly maps to CWE-284, which describes improper access control issues where system resources are accessible without proper authentication mechanisms. The lack of authentication requirements for the named pipe means that any local user can potentially connect to the pipe and utilize the associated configuration utilities.
The operational impact of this vulnerability is substantial as it provides attackers with elevated privileges within the system. Since the configuration utilities are typically designed to perform administrative functions, gaining access to these tools through the insecure named pipe can lead to privilege escalation and system compromise. The vulnerability allows unauthorized users to manipulate proxy host settings, potentially redirecting traffic or modifying security configurations. This can result in man-in-the-middle attacks, traffic interception, or complete system takeover depending on the scope of privileges available through the configuration utilities. The remote exploitation capability means that attackers could potentially compromise systems from outside the local network, making this vulnerability particularly dangerous in enterprise environments.
Mitigation strategies should focus on immediate patching of the Funk Software Proxy Host to version 3.09A or later, which addresses the insecure named pipe configuration. System administrators should also implement additional security measures such as verifying access control lists on named pipes and ensuring that only authorized users have access to system configuration utilities. The vulnerability highlights the importance of proper security configuration management and demonstrates why the principle of least privilege must be applied to all system services. Organizations should conduct security assessments to identify similar insecure named pipe configurations in other software components and ensure that all inter-process communication mechanisms implement proper authentication and authorization controls. This vulnerability serves as a reminder of the critical importance of secure coding practices and proper security configuration management in preventing unauthorized system access and privilege escalation attacks.