CVE-2026-80217 in FF-RFI079I4
Summary
by MITRE • 09/15/2026
Hidden functionality issue exists in FF-RFI079I4 and FF-RFI078I4, which may allow a user who can log in via SSH and access the enable mode on the product to execute arbitrary OS commands.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability identified within the FF-RFI079I4 and FF-RFI078I4 modules represents a critical hidden functionality flaw that undermines the fundamental security boundaries of the affected system. This issue is not merely a configuration error but an architectural deficiency where specific code paths or administrative interfaces remain accessible to authenticated users who have achieved elevated privileges through SSH access and enable mode entry. The presence of these hidden functionalities suggests that the software was either developed with debug features left enabled in production builds, or that certain management commands were inadvertently exposed without adequate authorization checks beyond basic login credentials. This type of flaw is particularly dangerous because it bypasses standard security controls by relying on obscurity rather than robust access control mechanisms, allowing an attacker who has already compromised user-level SSH access to escalate their privileges effectively and execute arbitrary operating system commands with the context of the application or root level depending on how enable mode is implemented.
From a technical perspective, this vulnerability aligns closely with CWE-250, which describes execution with unnecessary privileges, as well as CWE-78, the improper neutralization of special elements used in an OS command injection. The core issue lies in the lack of strict separation between administrative functions and standard operational commands within the enable mode interface. When a user logs in via SSH and enters enable mode, they are granted access to a broader set of system interactions than intended by the security policy. If these hidden functionalities allow for direct invocation of shell interpreters or command execution APIs without additional verification steps such as multi-factor authentication or role-based access control checks, it creates a direct pathway for remote code execution. The attacker does not need to exploit complex buffer overflows or logic errors in network protocols; instead, they leverage the trusted relationship established by valid SSH credentials and enable mode status to trigger these hidden commands directly through the command-line interface.
The operational impact of this vulnerability is severe, as it effectively grants an authenticated user full control over the underlying operating system. Once arbitrary OS commands can be executed, the attacker gains the ability to read sensitive configuration files, modify system settings, install persistent backdoors, or pivot further into other network segments if the compromised device serves as a gateway or critical infrastructure component. This level of access compromises the confidentiality, integrity, and availability of the entire environment protected by this product. In enterprise environments where SSH is commonly used for management, an attacker who obtains valid credentials through phishing, credential stuffing, or brute force attacks can immediately escalate to full system compromise without needing additional exploits against network services like HTTP or SNMP. This significantly lowers the barrier to entry for attackers and increases the blast radius of any initial authentication breach.
To mitigate this risk, immediate remediation actions must focus on removing or disabling these hidden functionalities entirely if they are not required for legitimate operations. If certain advanced features are necessary, they should be decoupled from standard enable mode access and protected by additional layers of security such as role-based access control with distinct privilege levels that require separate authentication factors. It is also critical to implement strict input validation on all command execution interfaces to prevent any form of OS command injection, even within trusted administrative contexts. Furthermore, organizations should enforce the principle of least privilege by ensuring that SSH keys and passwords are rotated regularly and that enable mode access is restricted only to personnel who absolutely require it for system maintenance. Regular security audits and code reviews should be conducted to identify similar hidden functionalities in other modules, ensuring that no debug or diagnostic features remain exposed in production environments. Aligning these practices with MITRE ATT&CK techniques such as T1059 Command and Scripting Interpreter will help in detecting attempts to abuse these pathways for lateral movement or persistence within the network infrastructure.