CVE-2016-10181 in DWR-932B
Summary
by MITRE
An issue was discovered on the D-Link DWR-932B router. qmiweb provides sensitive information for CfgType=get_homeCfg requests.
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Analysis
by VulDB Data Team • 05/16/2026
The vulnerability identified as CVE-2016-10181 affects the D-Link DWR-932B wireless router model, representing a critical information disclosure flaw within the device's web interface. This vulnerability specifically impacts the qmiweb component, which serves as a web-based management interface for modem configuration and status information. The issue manifests when the router processes requests with the CfgType=get_homeCfg parameter, exposing sensitive configuration data that should remain protected from unauthorized access.
The technical flaw resides in the improper access control mechanisms implemented within the router's web server component. When an attacker sends a specially crafted HTTP request containing the CfgType=get_homeCfg parameter, the system fails to validate the request source or authentication status before returning configuration data. This represents a classic case of insufficient input validation and inadequate access control measures that aligns with CWE-284, which addresses improper access control vulnerabilities. The vulnerability essentially allows any remote attacker to retrieve sensitive information without requiring authentication credentials, creating an attack surface that violates fundamental security principles.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed configuration data may include network credentials, modem settings, and other sensitive parameters that could facilitate further exploitation. Attackers could leverage this information to gain deeper insights into the network infrastructure, potentially enabling them to craft more sophisticated attacks against the device or the broader network. The exposure of home network configuration details could lead to man-in-the-middle attacks, network reconnaissance, or even unauthorized access to connected devices. This vulnerability particularly affects enterprise and home users who may not regularly update their router firmware, leaving them susceptible to exploitation by threat actors who actively scan for such weaknesses.
Mitigation strategies for this vulnerability should include immediate firmware updates from D-Link to address the information disclosure issue, though users must ensure they obtain legitimate updates from official sources to avoid potential supply chain attacks. Network administrators should implement additional perimeter controls such as web application firewalls and access control lists to restrict access to the router's management interfaces. The vulnerability demonstrates the importance of principle of least privilege and proper input validation, as outlined in the ATT&CK framework under the T1071.004 technique for application layer protocol. Organizations should also consider network segmentation and regular vulnerability assessments to identify similar issues in other network devices that may be running outdated firmware versions. Regular monitoring of network traffic for suspicious requests containing the vulnerable parameter can help detect exploitation attempts, while implementing multi-factor authentication for router management interfaces provides additional protection layers.