CVE-2014-0621 in TC7200
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in Technicolor (formerly Thomson) TC7200 STD6.01.12 allow remote attackers to hijack the authentication of administrators for requests that (1) perform a factory reset via a request to goform/system/factory, (2) disable advanced options via a request to goform/advanced/options, (3) remove ip-filters via the IpFilterAddressDelete1 parameter to goform/advanced/ip-filters, or (4) remove firewall settings via the cbFirewall parameter to goform/advanced/firewall.
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Analysis
by VulDB Data Team • 06/22/2024
The CVE-2014-0621 vulnerability represents a critical cross-site request forgery flaw affecting Technicolor TC7200 routers running firmware version STD6.01.12. This vulnerability resides in the web-based administration interface of the device, specifically within the form handling mechanisms that process administrative requests. The flaw stems from the absence of proper anti-CSRF token validation in multiple administrative endpoints, creating a significant security risk for network administrators who rely on these devices for their network infrastructure. The vulnerability is classified under CWE-352, which specifically addresses Cross-Site Request Forgery issues, and aligns with ATT&CK technique T1072 for Application Access Tokens and T1566 for Phishing, as attackers can exploit this weakness to gain unauthorized administrative access through social engineering or compromised user sessions.
The technical implementation of this vulnerability allows remote attackers to manipulate administrative functions through carefully crafted HTTP requests that target specific endpoints within the router's web interface. The first exploitation vector involves the factory reset functionality accessible via the goform/system/factory endpoint, which when triggered without proper authentication validation, can completely restore the device to its default state, potentially erasing all custom configurations and exposing the network to default credentials. The second vector targets the goform/advanced/options endpoint, enabling attackers to disable advanced security features that might otherwise protect the network. The third and fourth vectors involve the goform/advanced/ip-filters endpoint with the IpFilterAddressDelete1 parameter and the goform/advanced/firewall endpoint with the cbFirewall parameter, respectively, allowing for the removal of critical network filtering rules that protect against unauthorized access and malicious traffic.
The operational impact of this vulnerability extends beyond simple administrative disruption to potentially compromise entire network infrastructures. An attacker who successfully exploits these CSRF vulnerabilities can effectively take complete control of the router's configuration, rendering network security policies ineffective and potentially exposing the internal network to external threats. The ability to perform factory resets can result in complete network disruption and loss of all custom configurations, while disabling advanced options and removing firewall settings can create significant security gaps. The vulnerability affects the device's ability to maintain network integrity and can lead to unauthorized access to network resources, making it particularly dangerous in enterprise environments where these devices often serve as critical network gateways. This weakness creates a persistent threat that can be exploited repeatedly, as the attacker only needs to convince a logged-in administrator to visit a malicious website or click on a crafted link.
Mitigation strategies for CVE-2014-0621 should include immediate firmware updates from Technicolor to address the CSRF implementation flaws, proper configuration of the router's web interface to enforce anti-CSRF tokens, and network segmentation to limit the potential impact of successful exploitation. Administrators should disable web-based administration interfaces when possible and implement additional authentication layers such as two-factor authentication or certificate-based authentication. The vulnerability highlights the importance of proper input validation and anti-CSRF token implementation in web applications, particularly those managing critical network infrastructure. Organizations should also implement network monitoring to detect unauthorized configuration changes and establish incident response procedures specifically addressing router compromise scenarios. Additionally, security awareness training for administrators can help prevent social engineering attacks that might exploit this vulnerability by convincing users to visit malicious sites while authenticated to the router's web interface.