CVE-2016-10182 in DWR-932B
Summary
by MITRE
An issue was discovered on the D-Link DWR-932B router. qmiweb allows command injection with ` characters.
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Analysis
by VulDB Data Team • 05/16/2026
The vulnerability identified as CVE-2016-10182 affects the D-Link DWR-932B router model and represents a critical command injection flaw within the qmiweb component. This issue arises from inadequate input validation and sanitization mechanisms that fail to properly handle special characters in user-supplied data. The vulnerability specifically manifests when the qmiweb interface processes input containing backtick characters, which are commonly used in unix-like operating systems for command substitution. When these characters are not properly escaped or filtered, they can be interpreted by the underlying shell as command delimiters, enabling attackers to inject arbitrary commands into the system. The affected router firmware exposes this vulnerability through its web-based management interface, making it accessible to remote attackers without requiring physical access or authentication.
The technical exploitation of this vulnerability falls under the Common Weakness Enumeration category CWE-77, which specifically addresses command injection flaws in software systems. This weakness allows attackers to execute arbitrary commands on the affected device with the privileges of the web application process. The DWR-932B router's qmiweb component appears to directly incorporate user input into system commands without proper sanitization, creating a direct pathway for malicious command execution. Attackers can leverage this vulnerability to gain unauthorized access to the router's operating system, potentially leading to complete system compromise. The backtick character injection mechanism provides attackers with a simple yet effective method to bypass input validation controls, as these characters are often overlooked in security filtering implementations.
From an operational perspective, this vulnerability poses significant risks to network security and device integrity. The DWR-932B router serves as a gateway device for many home and small office networks, making it a prime target for attackers seeking to establish persistent access points. Successful exploitation can lead to various malicious activities including but not limited to unauthorized network monitoring, data exfiltration, modification of router configurations, and potential use as a pivot point for attacking other devices within the network. The vulnerability's remote exploitability means that attackers can target affected devices from anywhere on the internet without requiring physical presence or prior authentication. This characteristic significantly increases the attack surface and makes the device particularly vulnerable to automated exploitation campaigns that scan for known vulnerabilities.
The impact extends beyond immediate device compromise to encompass broader network security implications. Once an attacker gains control of the router, they can manipulate network traffic, redirect DNS requests, or establish persistent backdoors for continued access. The router's role as a central network component makes it a valuable target for attackers seeking to maintain long-term access to compromised networks. Security practitioners should consider this vulnerability in the context of the MITRE ATT&CK framework, specifically mapping it to techniques related to command and scripting interpreter execution, privilege escalation, and persistence mechanisms. Organizations should implement immediate mitigations including firmware updates from D-Link, network segmentation, and monitoring for suspicious network activity that may indicate exploitation attempts. The vulnerability underscores the importance of input validation and proper security coding practices in embedded systems and web interfaces, highlighting the need for comprehensive security testing of network devices before deployment.