Cellular Router Remote Code Execution (RCE) Scanner

Cellular Routers are widely utilized in settings requiring mobile data network connectivity for internet access, such as remote offices, IoT installations, and mobile command centers. Manufactured by companies like Hytec, they cater to both consumer and industrial applications, offering flexibility when conventional wired connections are impractical. These routers facilitate seamless data communication through mobile networks, bypassing the need for traditional Ethernet or DSL lines. With advancements in mobile technology, cellular routers support high-speed data transfers, making them viable alternatives for broadband connections. The devices are configured to manage multiple network connections, ensuring reliable internet access in areas lacking stable fixed-line services. Given their robust functionality, cellular routers are vital for maintaining consistent connectivity in various field operations and mobile environments.

This scanner identifies Remote Code Execution (RCE) vulnerabilities in Cellular Routers, wherein attackers can execute unauthorized commands on the targeted system. RCE poses a significant threat as it allows remote attackers to take control of affected devices without any physical access. Once exploited, the attacker gains the ability to maneuver within the system, potentially performing malicious activities. This vulnerability is particularly dangerous as it can lead to further exploitation of the affected network device. Cellular Routers with this flaw are at risk of unauthorized access, which compromises the security and confidentiality of connected networks. Given the criticality of this vulnerability, timely detection and remediation are crucial to safeguarding network infrastructure.

The vulnerability exists in the web interface of the Cellular Router, where the command execution flaw can be triggered via the `/cgi-bin/popen.cgi` endpoint. It takes advantage of improperly sanitized input parameters, such as the 'command' parameter, allowing the execution of shell commands. Attackers craft HTTP requests that send malicious command strings to this endpoint, exploiting the server's configuration to execute them. The vulnerable command injection on this endpoint makes it a prime target for attackers seeking unauthorized access. The scanner interacts with this specific URL, injecting test strings to verify the presence of the vulnerability. Successful exploitation can result in unauthorized control over the router and potentially the broader network environment it manages.

When exploited, this vulnerability can grant attackers full control over the affected Cellular Router, leading to unauthorized data access and potential data breaches. It permits the installation of malicious software, jeopardizing the integrity of connected devices. Uncontrolled manipulation of network settings can disrupt services, crippling business operations reliant on uninterrupted internet access. The exploitation of this flaw undermines network security protocols, making the router and associated devices susceptible to further attacks. Additionally, sensitive data transmitted through the router becomes exposed, raising significant privacy concerns. It is imperative for administrators to address this weakness promptly to prevent these severe consequences.