CVE-2025-7192 in DIR-645
Summary
by MITRE • 07/08/2025
A vulnerability was found in D-Link DIR-645 up to 1.05B01 and classified as critical. This issue affects the function ssdpcgi_main of the file /htdocs/cgibin of the component ssdpcgi. The manipulation leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
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Analysis
by VulDB Data Team • 07/14/2025
The vulnerability identified as CVE-2025-7192 represents a critical command injection flaw in D-Link DIR-645 wireless routers running firmware versions up to 1.05B01. This security weakness resides within the ssdpcgi_main function of the ssdpcgi component, specifically located in the /htdocs/cgibin directory of the device's web interface. The vulnerability stems from insufficient input validation and sanitization within the ssdpcgi module, which processes user-supplied data without proper escaping or filtering mechanisms. This allows malicious actors to inject arbitrary commands that execute with the privileges of the web server process, typically root or administrator level access within the router's operating environment.
The technical exploitation of this vulnerability occurs through remote manipulation of the ssdpcgi component's input parameters, particularly those related to the ssdpcgi_main function. Attackers can craft malicious HTTP requests that bypass normal input validation checks and inject operating system commands directly into the router's command execution pipeline. The vulnerability's classification as critical reflects the potential for full system compromise, including unauthorized access to network resources, data exfiltration, and the ability to modify router configurations. The fact that this vulnerability affects a legacy device model that is no longer supported by the vendor significantly amplifies the risk, as users cannot receive official security patches or updates to address the flaw.
The operational impact of CVE-2025-7192 extends beyond simple remote code execution, as it enables attackers to establish persistent access to the affected network infrastructure. Once exploited, compromised routers can serve as entry points for broader network infiltration, allowing attackers to conduct man-in-the-middle attacks, redirect traffic, or use the device as a pivot point for attacking other systems within the local network. The vulnerability's public disclosure status means that threat actors have readily available tools and techniques to exploit the flaw, making affected devices particularly vulnerable to automated attacks. Network administrators should note that this vulnerability affects devices that are no longer receiving security updates, creating a situation where the risk of exploitation is elevated due to the lack of vendor support for remediation.
Organizations and individuals should immediately implement network segmentation strategies to isolate affected devices from critical network infrastructure, while also considering the complete removal of unsupported router models from production environments. The vulnerability aligns with CWE-77 and CWE-94 categories, representing command injection and code execution flaws that have been consistently identified as high-risk security vulnerabilities in the industry. From an ATT&CK framework perspective, this vulnerability maps to techniques such as T1059.001 (Command and Scripting Interpreter: PowerShell) and T1021.001 (Remote Services: Remote Desktop Protocol) when exploited for lateral movement and persistence. The most effective mitigation strategy involves immediate firmware updates where available, though for unsupported devices, complete network isolation or physical removal of the devices from operation remains the only viable long-term solution to prevent exploitation.