CVE-2013-3095 in Dir865l
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in D-Link DIR865L router (Rev. A1) with firmware before 1.05b07 allow remote attackers to hijack the authentication of administrators for requests that (1) change the administrator password or (2) enable remote management via a request to hedwig.cgi or (3) activate configuration changes via a request to pigwidgeon.cgi.
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Analysis
by VulDB Data Team • 07/28/2024
The CVE-2013-3095 vulnerability represents a critical cross-site request forgery issue affecting D-Link DIR865L router models with firmware versions prior to 1.05b07. This vulnerability resides in the router's web-based administrative interface and demonstrates a fundamental flaw in authentication and request validation mechanisms. The affected device operates with a web management console that fails to properly verify the origin of administrative requests, creating an exploitable condition that allows remote attackers to perform unauthorized actions on behalf of authenticated administrators.
The technical implementation of this vulnerability stems from the absence of proper anti-CSRF tokens within the router's web interface forms and API endpoints. Attackers can craft malicious web pages or exploit existing user sessions to submit requests to specific CGI scripts without proper authentication validation. The vulnerability specifically targets three distinct administrative functions through different CGI endpoints: hedwig.cgi for password changes and remote management activation, and pigwidgeon.cgi for configuration modifications. These endpoints lack adequate session validation or token-based authentication mechanisms that would prevent unauthorized requests from being processed.
The operational impact of this vulnerability is severe as it provides attackers with complete administrative control over the affected router. Successful exploitation enables attackers to change administrator passwords, which effectively locks out legitimate users and provides persistent access to the device. Additionally, attackers can enable remote management capabilities, potentially allowing them to establish persistent backdoors or further compromise the network. The configuration change functionality through pigwidgeon.cgi allows for modification of critical router settings, potentially including firewall rules, DNS configurations, or network routing parameters that could facilitate broader network infiltration.
This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in web applications. The flaw demonstrates poor input validation and insufficient session management practices that are commonly exploited in network device security breaches. From an attack framework perspective, this vulnerability maps to multiple ATT&CK techniques including T1078 for valid accounts usage and T1566 for phishing attacks that could be used to deliver malicious payloads. The remote nature of the exploitation means that attackers do not require physical access to the device, making it particularly dangerous in enterprise and home network environments where such devices are often deployed without proper security hardening.
The mitigation strategy for this vulnerability requires immediate firmware updates from D-Link to address the CSRF implementation flaws in the affected router models. Network administrators should also implement additional security measures such as disabling remote management features when not required, restricting access to administrative interfaces through firewall rules, and monitoring network traffic for suspicious activity. The vulnerability highlights the importance of proper authentication mechanisms in network device management interfaces and serves as a reminder of the critical security considerations that must be addressed in embedded systems and IoT devices. Organizations should also consider implementing network segmentation and regular security assessments to identify similar vulnerabilities in other network infrastructure components.