CVE-2014-3792 in 450TC2 Router
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in Beetel 450TC2 Router with firmware TX6-0Q-005_retail allows remote attackers to hijack the authentication of administrators for requests that change the administrator password via the uiViewTools_Password and uiViewTools_PasswordConfirm parameters to Forms/tools_admin_1.
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Analysis
by VulDB Data Team • 08/18/2024
The CVE-2014-3792 vulnerability represents a critical cross-site request forgery flaw discovered in the Beetel 450TC2 wireless router firmware version TX6-0Q-005_retail. This vulnerability resides within the router's web-based administrative interface, specifically in the password change functionality that operates through the Forms/tools_admin_1 endpoint. The flaw allows remote attackers to exploit the absence of proper authentication tokens or validation mechanisms, enabling them to manipulate administrative sessions and execute unauthorized password changes without legitimate credentials. The vulnerability specifically targets the uiViewTools_Password and uiViewTools_PasswordConfirm parameters, which are used to process password modification requests within the router's user interface. This represents a fundamental failure in the router's web application security architecture, as it fails to implement proper CSRF protection measures that would normally be expected in enterprise networking equipment.
The technical implementation of this vulnerability stems from the router's failure to validate the origin of requests made to the administrative password change endpoint. When an administrator accesses the router's web interface, the system should generate and validate a unique anti-CSRF token that ensures requests originate from legitimate administrative sessions. However, the Beetel 450TC2 firmware does not enforce such validation, allowing attackers to craft malicious web pages or exploit existing vulnerabilities to submit forged requests that modify administrative passwords. The vulnerability operates at the application layer, specifically targeting the router's web server implementation and its handling of administrative user sessions. This flaw directly violates established security principles and can be categorized under CWE-352, which defines Cross-Site Request Forgery vulnerabilities. The attack vector requires no authentication or prior access to the network, as the vulnerability exists in the publicly accessible web interface that typically requires administrative credentials for access.
The operational impact of this vulnerability extends far beyond simple password modification, as it fundamentally compromises the router's administrative security posture and can lead to complete network compromise. An attacker who successfully exploits this vulnerability gains administrative control over the router, which can then be used as a launching point for further network infiltration activities. The compromised router can serve as a pivot point for attackers to access internal network resources, monitor traffic, or establish persistent access through the compromised administrative credentials. This vulnerability particularly affects small to medium business networks where router security is often overlooked, as the compromised device can provide attackers with privileged access to network infrastructure. The impact aligns with ATT&CK technique T1078.004, which describes Valid Accounts usage, and T1566, representing Phishing with Social Engineering, as attackers can leverage this vulnerability to gain unauthorized administrative access to network devices.
The remediation approach for CVE-2014-3792 requires immediate firmware updates from the manufacturer or implementation of network-level mitigations to prevent exploitation. Organizations should prioritize updating the Beetel 450TC2 firmware to a version that includes proper CSRF token validation and authentication mechanisms. Network segmentation and access control measures should be implemented to limit direct access to router administrative interfaces from untrusted networks. Additionally, implementing network monitoring solutions that can detect anomalous administrative access patterns or unauthorized password change attempts can provide early warning of exploitation attempts. Security professionals should consider deploying web application firewalls or network access controls that can prevent cross-site request forgery attacks targeting administrative interfaces. The vulnerability demonstrates the critical importance of proper input validation and authentication mechanisms in network infrastructure devices, as these components often serve as primary attack vectors for network compromise. Organizations should also conduct regular vulnerability assessments of their network infrastructure to identify similar unpatched vulnerabilities that could provide attackers with unauthorized access to critical network resources.