CVE-2006-0680 in WebGUI
Summary
by MITRE
Unspecified vulnerability in WebGUI before 6.8.6-gamma allows remote attackers to create an account, when anonymous registration is disabled, via a certain URL.
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Analysis
by VulDB Data Team • 07/19/2018
The vulnerability identified as CVE-2006-0680 represents a significant security flaw in WebGUI versions prior to 6.8.6-gamma that undermines the application's account management controls. This issue specifically targets the authentication and authorization mechanisms within the web application framework, creating a pathway for unauthorized users to bypass normal account creation restrictions. The vulnerability manifests when anonymous registration is explicitly disabled within the system configuration, yet attackers can still successfully establish new user accounts through a carefully constructed URL access pattern.
The technical nature of this vulnerability stems from improper input validation and access control implementation within the WebGUI application's account creation logic. When anonymous registration is disabled, the system should enforce strict authentication requirements before permitting new account creation. However, the flaw allows attackers to exploit a specific URL structure that circumvents these security controls, effectively granting unauthorized access to account creation functionality. This represents a classic case of insufficient authorization checks and potentially inadequate parameter validation within the web application's request processing pipeline.
The operational impact of this vulnerability extends beyond simple unauthorized account creation, as it fundamentally compromises the system's user access controls and potentially exposes the entire application to further attacks. An attacker who successfully exploits this vulnerability can create multiple user accounts with varying permission levels, potentially establishing persistent access points within the system. The implications are particularly severe when considering that WebGUI is often used for administrative and management purposes, meaning that compromised accounts could provide attackers with elevated privileges within the application environment. This vulnerability aligns with CWE-285, which addresses improper authorization issues, and could be leveraged as part of broader attack chains targeting web application security.
Security professionals should consider this vulnerability in the context of the ATT&CK framework, particularly under the privilege escalation and persistence tactics. The ability to create accounts without proper authorization represents a foundational security weakness that could enable attackers to establish footholds within systems. Organizations should prioritize immediate remediation by upgrading to WebGUI version 6.8.6-gamma or later, which contains the necessary patches to address the authorization bypass. Additionally, administrators should conduct comprehensive reviews of their account management policies and implement additional monitoring for suspicious account creation activities. The vulnerability demonstrates the critical importance of proper access control implementation and the potential consequences when authentication mechanisms fail to properly validate user privileges. Organizations should also consider implementing web application firewalls and input validation controls to mitigate similar vulnerabilities in other applications within their infrastructure.