CVE-2017-5874 in DIR-600
Summary
by MITRE
CSRF exists on D-Link DIR-600M Rev. Cx devices before v3.05ENB01_beta_20170306. This can be used to bypass authentication and insert XSS sequences or possibly have unspecified other impact.
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Analysis
by VulDB Data Team • 09/10/2020
The CVE-2017-5874 vulnerability represents a critical cross-site request forgery weakness present in D-Link DIR-600M Rev. Cx wireless routers running firmware versions prior to v3.05ENB01_beta_20170306. This vulnerability resides within the web-based management interface of the device and operates through a fundamental flaw in the authentication token validation mechanism that should have been implemented to prevent unauthorized administrative actions. The flaw allows attackers to craft malicious requests that can be executed by authenticated users without their knowledge or consent, effectively bypassing the device's security controls.
The technical implementation of this CSRF vulnerability stems from the absence of proper anti-CSRF tokens in the web forms and API endpoints used for administrative configuration changes. When users access the router's web interface, the authentication session is established but the system fails to validate that requests originate from legitimate administrative sessions. This design flaw aligns with CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities in web applications. The vulnerability enables attackers to manipulate the router's configuration settings through crafted HTTP requests that appear to come from legitimate administrative sessions, potentially allowing full control over the device's network settings.
The operational impact of this vulnerability extends beyond simple authentication bypass, as it provides attackers with the capability to inject malicious scripts through cross-site scripting vectors within the router's web interface. This dual nature of the vulnerability creates a particularly dangerous attack surface where an attacker could not only gain administrative access to the device but also execute arbitrary code through XSS payloads. The unspecified other impacts mentioned in the description suggest potential for additional security consequences including network disruption, data exfiltration, or further exploitation of the compromised device as a pivot point for broader network attacks. This vulnerability directly maps to ATT&CK technique T1071.004 for application layer protocol usage and T1059.007 for scripting execution.
Mitigation strategies for CVE-2017-5874 require immediate firmware updates to version v3.05ENB01_beta_20170306 or later, which addresses the underlying CSRF token validation issues. Network administrators should also implement additional security measures including disabling unnecessary web management interfaces, restricting access to the router's administrative interface through firewall rules, and monitoring for suspicious network traffic patterns that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and token management in web-based administrative interfaces, as highlighted in industry best practices for secure web application development and the OWASP Top Ten security framework. Organizations should also consider implementing network segmentation and regular vulnerability assessments to identify similar weaknesses in other network infrastructure devices.