CVE-2025-7082 in F9K1122
Summary
by MITRE • 07/06/2025
A vulnerability was found in Belkin F9K1122 1.00.33 and classified as critical. Affected by this issue is the function formBSSetSitesurvey of the file /goform/formBSSetSitesurvey of the component webs. The manipulation of the argument wan_ipaddr/wan_netmask/wan_gateway/wl_ssid is directly passed by the attacker/so we can control the wan_ipaddr/wan_netmask/wan_gateway/wl_ssid leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 07/06/2025
The vulnerability identified as CVE-2025-7082 represents a critical command injection flaw in Belkin F9K1122 routers running firmware version 1.00.33. This security weakness resides within the web interface component of the device, specifically in the formBSSetSitesurvey function located at /goform/formBSSetSitesurvey. The vulnerability stems from insufficient input validation and sanitization of user-supplied parameters, creating a direct path for remote attackers to execute arbitrary operating system commands on the affected device. The attack vector is particularly concerning as it allows remote exploitation without requiring authentication, making it accessible to any attacker who can reach the device's web interface.
The technical implementation of this vulnerability involves the manipulation of four critical parameters: wan_ipaddr, wan_netmask, wan_gateway, and wl_ssid. These parameters are directly passed through the web form interface to the underlying operating system without proper sanitization or validation. When an attacker submits malicious input through these fields, the system processes the data without adequate filtering, allowing command injection payloads to be executed as part of the operating system commands. This flaw aligns with CWE-77 and CWE-94, which respectively describe improper neutralization of special elements used in OS commands and improper control of generation of code. The vulnerability essentially allows an attacker to inject operating system commands through the web interface, potentially leading to complete system compromise.
The operational impact of CVE-2025-7082 is severe and multifaceted, representing a critical threat to network security and device integrity. An attacker who successfully exploits this vulnerability can gain full administrative control over the affected router, potentially enabling them to modify network configuration settings, redirect traffic, establish backdoors, or even use the device as a pivot point for attacking other systems on the network. The remote nature of the attack means that adversaries do not need physical access to the device or local network connectivity to exploit the vulnerability. This makes the impact particularly dangerous as it can be exploited from anywhere on the internet, potentially allowing attackers to compromise networks globally. The disclosure of the exploit to the public further amplifies the risk, as it provides attackers with a ready-made tool for targeting vulnerable devices.
Organizations and individuals using Belkin F9K1122 routers should immediately implement mitigation strategies to protect against potential exploitation of CVE-2025-7082. The most effective immediate solution involves applying the vendor-provided firmware update if available, though the lack of vendor response to early disclosure concerns suggests that such updates may not be forthcoming. Network segmentation and access control measures should be implemented to limit exposure of affected devices to untrusted networks, while firewall rules should be configured to block access to the device's web interface from external networks. The implementation of network monitoring and intrusion detection systems can help identify potential exploitation attempts by monitoring for unusual network traffic patterns or command execution patterns. Additionally, regular security audits should be conducted to ensure that no unauthorized changes have been made to network configurations, and network administrators should consider disabling unnecessary services and features on affected devices to minimize the attack surface. This vulnerability demonstrates the critical importance of maintaining up-to-date firmware and implementing robust network security practices to protect against known exploits.