BaseFortify

Executive Summary

This vulnerability exists in Ruckus vRIoT IoT Controller firmware versions prior to 3.0.0.0 (GA) and involves hardcoded SSH credentials embedded in an initialization script for an operating system user account. The SSH service is accessible over the network without IP-based restrictions. Although some SSH features like SCP and pseudo-TTY allocation are disabled, an attacker can authenticate using the hardcoded credentials and establish SSH local port forwarding to access the Docker socket. By mounting the host filesystem via Docker, the attacker can escape the container and execute arbitrary OS commands as root on the underlying controller, leading to complete system compromise. [2]

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Impact Analysis

Exploitation of this vulnerability allows a remote attacker to gain root-level access to the affected Ruckus vRIoT IoT Controller. This means the attacker can execute arbitrary operating system commands with full privileges, effectively taking complete control of the system. Such a compromise can lead to unauthorized access, data theft, disruption of services, and potentially using the compromised device as a pivot point for further attacks within the network. [2]

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Detection Guidance

Detection can focus on identifying the presence of hardcoded SSH credentials and unauthorized SSH access attempts. You can check for SSH services running without IP-based restrictions and look for unusual SSH local port forwarding activity. Commands to detect this may include: 1) Checking SSH configuration and running processes: `ps aux | grep sshd` and `ss -tlnp | grep sshd` to verify SSH service and listening ports. 2) Searching initialization scripts for hardcoded credentials: `grep -r 'hardcoded_username_or_password' /etc/init.d/` or relevant script directories. 3) Monitoring SSH login attempts and port forwarding usage in logs: `grep 'Accepted password' /var/log/auth.log` and `grep 'channel request' /var/log/auth.log` for port forwarding. 4) Checking Docker socket access and mounts: `lsof | grep docker.sock` or inspecting Docker mounts. These steps help identify if the vulnerable SSH service is accessible and if exploitation attempts are occurring. [2]

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Mitigation Strategies

Immediate mitigation steps include: 1) Upgrading the Ruckus vRIoT IoT Controller firmware to version 3.0.0.0 (GA) or later, which removes the hardcoded credentials. 2) Restricting network access to the SSH service by implementing IP-based access controls or firewall rules to limit SSH exposure. 3) Disabling or restricting SSH access if not required. 4) Monitoring for unauthorized SSH logins and port forwarding attempts. 5) Reviewing and removing any hardcoded credentials from initialization scripts if possible. These actions reduce the risk of exploitation and help secure the system against this critical vulnerability. [2]

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