CVE-2022-29014 in Gaming Router
Summary
by MITRE • 06/09/2022
A local file inclusion vulnerability in Razer Sila Gaming Router v2.0.441_api-2.0.418 allows attackers to read arbitrary files.
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Analysis
by VulDB Data Team • 06/11/2022
The CVE-2022-29014 vulnerability represents a critical local file inclusion flaw discovered in the Razer Sila Gaming Router firmware version 2.0.441_api-2.0.418. This vulnerability falls under the CWE-22 category, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability exists within the router's web-based administration interface where user input is not properly sanitized before being used in file operations. Attackers can exploit this weakness by manipulating input parameters to the router's API endpoints, potentially allowing them to access sensitive files stored on the device's file system. The affected firmware version demonstrates a classic lack of input validation and output encoding that enables malicious actors to bypass normal file access controls.
The technical exploitation of this vulnerability occurs through crafted HTTP requests sent to the router's API endpoints. When the router processes these requests, it fails to validate or sanitize user-supplied parameters that are subsequently used in file system operations. This allows an attacker to manipulate the file path used in file inclusion operations, enabling access to arbitrary files on the device. The vulnerability is particularly concerning because it affects the router's administrative interface, which typically has elevated privileges and access to sensitive configuration files, system logs, and potentially user credentials stored within the device's file system. The attack vector is entirely local in nature, meaning an attacker needs access to the network segment where the router operates, though this access can be achieved through various initial compromise techniques such as network sniffing or exploitation of other vulnerabilities on the same network.
The operational impact of CVE-2022-29014 extends beyond simple information disclosure, as it can potentially lead to complete system compromise of the affected router. An attacker who successfully exploits this vulnerability can access sensitive configuration files that may contain administrative credentials, network settings, or other critical system information. This access could enable further attacks on the internal network, including potential lateral movement to other devices or the establishment of persistent access points. The vulnerability also creates opportunities for attackers to modify system files, potentially leading to denial of service conditions or the installation of persistent backdoors. From an ATT&CK framework perspective, this vulnerability maps to T1083 (File and Directory Discovery) and T1566 (Phishing for Information) as attackers can use it to gather intelligence about the network and potentially escalate privileges through the access it provides to system-level files.
Mitigation strategies for CVE-2022-29014 should focus on immediate firmware updates provided by Razer to address the vulnerability. Network segmentation and access controls should be implemented to limit the potential attack surface, ensuring that only authorized personnel can access the router's administrative interface. Regular security audits of network devices and monitoring for unusual file access patterns can help detect exploitation attempts. Network administrators should also implement proper input validation and output encoding mechanisms in web applications to prevent similar vulnerabilities from being introduced in custom applications. The vulnerability highlights the importance of secure coding practices and the need for regular security assessments of network infrastructure devices, particularly those with web-based management interfaces. Organizations should also consider implementing network monitoring solutions that can detect anomalous behavior patterns indicative of exploitation attempts. The incident serves as a reminder of the critical importance of keeping network infrastructure firmware up to date and maintaining comprehensive security policies for all connected devices.