CVE-2013-5730 in DSL-2740B
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in D-Link DSL-2740B Gateway with firmware EU_1.00 allow remote attackers to hijack the authentication of administrators for requests that (1) enable or disable Wireless MAC Address Filters via a wlFltMode action to wlmacflt.cmd, (2) enable or disbale firewall protections via a request to scdmz.cmd, or (3) enable or disable remote management via a save action to scsrvcntr.cmd.
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Analysis
by VulDB Data Team • 06/30/2024
The CVE-2013-5730 vulnerability represents a critical cross-site request forgery flaw affecting D-Link DSL-2740B Gateway devices running firmware version EU_1.00. This vulnerability resides in the web-based management interface of the device and allows remote attackers to manipulate administrative functions without proper authentication. The flaw stems from the absence of proper CSRF protection mechanisms within the device's web interface, specifically in three distinct administrative endpoints that control wireless security, firewall configurations, and remote management access. According to CWE-352, this vulnerability directly maps to Cross-Site Request Forgery, a well-documented weakness where attackers can trick authenticated users into executing unintended actions on web applications.
The technical implementation of this vulnerability occurs through three specific attack vectors that target different administrative functions within the gateway's management interface. The first vector involves manipulating the wlFltMode action parameter in the wlmacflt.cmd endpoint, which allows attackers to enable or disable Wireless MAC Address Filters without administrator consent. The second vector targets the scdmz.cmd endpoint, enabling manipulation of firewall protection settings through crafted requests. The third vector operates through the scsrvcntr.cmd endpoint with save actions, allowing unauthorized modification of remote management capabilities. These endpoints lack proper anti-CSRF tokens or other validation mechanisms that would ensure requests originate from legitimate administrative sessions.
The operational impact of this vulnerability is severe as it provides attackers with complete administrative control over the affected gateway. An attacker could remotely disable wireless security filters, potentially allowing unauthorized devices to connect to the network, or disable firewall protections that could expose the internal network to external threats. The ability to modify remote management settings could completely compromise the device's accessibility and security posture, potentially enabling persistent access to the network infrastructure. This vulnerability directly aligns with ATT&CK technique T1071.004 for application layer protocol usage and T1566 for credential harvesting, as it enables unauthorized administrative access and potential credential compromise.
Mitigation strategies for CVE-2013-5730 should focus on immediate firmware updates from D-Link to address the CSRF implementation flaws. Organizations should also implement network segmentation to limit exposure of administrative interfaces to untrusted networks, deploy network access control measures to restrict access to management ports, and establish monitoring for unauthorized configuration changes. The vulnerability demonstrates the critical importance of implementing proper CSRF protection mechanisms in web-based administrative interfaces, as outlined in OWASP Top 10 2021 category A05: Security Misconfiguration. Network administrators should also consider implementing additional authentication layers and regular security assessments to identify similar vulnerabilities in other network infrastructure devices.