CVE-2004-1313 in Firewall
Summary
by MITRE
the smc.exe process in my firewall plus 5.0 build 1117 and possibly other versions does not drop privileges before invoking help which allows local users to gain privileges.
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Analysis
by VulDB Data Team • 07/05/2018
The vulnerability identified as CVE-2004-1313 resides within the smc.exe process of My Firewall Plus version 5.0 build 1117 and potentially other iterations of the software. This security flaw represents a critical privilege escalation issue that fundamentally compromises the integrity of the system's access controls. The vulnerability manifests when the smc.exe process fails to properly drop administrative privileges before executing help-related functionality, creating an exploitable condition that allows local attackers to elevate their system access rights.
From a technical perspective, this vulnerability constitutes a privilege escalation flaw that directly violates the principle of least privilege enforcement. The smc.exe process, which typically operates with elevated system permissions to manage firewall policies and network security configurations, maintains these elevated privileges during help function invocation. This design flaw creates a persistent vector through which local users can leverage the process's elevated status to execute malicious code with administrative privileges. The vulnerability is classified under CWE-276 as improper privilege management, specifically involving inadequate privilege dropping mechanisms during process execution.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it fundamentally undermines the security model of the firewall application. Local users who might not otherwise have administrative access can exploit this weakness to gain full system control, potentially allowing them to modify firewall rules, access sensitive network data, or establish persistent backdoors. This compromise directly affects the integrity and confidentiality of the protected network environment, as the firewall's primary security function becomes compromised by an internal process that fails to enforce proper access controls. The vulnerability represents a classic example of a privilege escalation attack that leverages process execution flows to bypass normal security boundaries.
Security professionals should recognize this vulnerability as a significant concern within enterprise environments where My Firewall Plus is deployed, particularly in scenarios where multiple users have access to the same system. The attack surface is broad since local access to the system provides the necessary conditions for exploitation, making it particularly dangerous in shared computing environments. Mitigation strategies should include immediate patch application from the vendor, implementation of privilege monitoring mechanisms, and consideration of alternative firewall solutions that properly enforce privilege separation. This vulnerability aligns with ATT&CK technique T1068 which describes privilege escalation through local exploitation of process vulnerabilities, and demonstrates the critical importance of proper privilege management in security-critical applications. Organizations should conduct comprehensive vulnerability assessments to identify similar privilege escalation issues within their network security infrastructure and implement robust process monitoring to detect unauthorized privilege escalation attempts.