CVE-2022-35273 in AR260S V2
Summary
by MITRE • 09/08/2022
OS command injection vulnerability in GUI setting page of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7 allows a remote authenticated attacker to execute an arbitrary OS command.
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Analysis
by VulDB Data Team • 10/14/2022
The CVE-2022-35273 vulnerability represents a critical operating system command injection flaw discovered in the CentreCOM AR260S V2 wireless router firmware. This vulnerability exists within the graphical user interface setting page of the device, specifically affecting firmware versions prior to Ver.3.3.7. The flaw enables a remote authenticated attacker to execute arbitrary operating system commands on the affected device, potentially compromising the entire network infrastructure. The vulnerability stems from inadequate input validation and sanitization within the web-based administrative interface, allowing maliciously crafted parameters to be interpreted as system commands rather than data inputs.
The technical exploitation of this vulnerability occurs through the manipulation of input fields within the GUI setting page, where user-supplied data is directly incorporated into system commands without proper sanitization. This command injection flaw falls under the Common Weakness Enumeration category of CWE-77, which specifically addresses improper neutralization of special elements used in OS commands. Attackers can leverage this vulnerability by crafting malicious requests that include OS command injection payloads, which are then executed with the privileges of the web server process. The authenticated nature of the attack means that an attacker must first obtain valid credentials to the device's administrative interface, but once achieved, the impact extends beyond simple privilege escalation to full system compromise.
The operational impact of CVE-2022-35273 is significant for organizations relying on CentreCOM AR260S V2 devices, as successful exploitation can lead to complete system takeover, data exfiltration, and potential lateral movement within the network. The vulnerability creates a persistent backdoor that attackers can use to maintain long-term access to the compromised device, potentially enabling them to monitor network traffic, redirect requests to malicious servers, or use the device as a pivot point for attacking other network segments. This threat aligns with the tactics described in the MITRE ATT&CK framework under the T1059.001 technique for command and scripting interpreter, specifically targeting OS command execution capabilities. Organizations may face regulatory compliance violations and security breaches if such vulnerabilities remain unpatched, particularly in environments where network infrastructure security is paramount.
Mitigation strategies for CVE-2022-35273 primarily focus on firmware updates and network segmentation. The most effective immediate solution involves upgrading the CentreCOM AR260S V2 firmware to version 3.3.7 or later, where the vulnerability has been addressed through proper input validation and sanitization mechanisms. Network administrators should also implement strict access controls, including multi-factor authentication for administrative interfaces, and monitor for suspicious login attempts or unusual network behavior that might indicate exploitation attempts. Additional protective measures include restricting administrative access to trusted network segments, implementing network access controls to limit communication with the affected device, and conducting regular vulnerability assessments to identify similar weaknesses in other network infrastructure components. The vulnerability highlights the importance of maintaining up-to-date firmware and the necessity of robust input validation practices in network device management interfaces.