Information Disclosure in SJRC F11 SJ-GPS-PRO Firmware

Executive Summary

This vulnerability is in the SJRC F11 SJ-GPS-PRO firmware build 2019-09-17. It allows a remote attacker to access sensitive information through the inetd service.

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Detection Guidance

This vulnerability involves an issue in SJRC F11 SJ-GPS-PRO firmware where a remote attacker can exploit the inetd service to obtain sensitive information. Detection requires checking for open ports associated with inetd, such as port 514 or other services running on the device. Use commands like 'netstat -tuln' or 'ss -tuln' to identify listening services. Inspect running processes with 'ps aux | grep inetd' to confirm if inetd is active. Additionally, verify the firmware version of the SJ-GPS-PRO device to ensure it is not the vulnerable build dated 2019-09-17.

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Impact Analysis

An attacker could exploit this to obtain sensitive data from the affected device. This may include GPS data or other system information.

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Compliance Impact

The vulnerability allows remote attackers to obtain sensitive information via the inetd service, which could lead to unauthorized access to personal or confidential data. This may violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy) if such data is exposed.

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Mitigation Strategies

Disable the inetd service on affected SJRC F11 SJ-GPS-PRO devices to prevent remote access. Update firmware to a patched version if available. Restrict network access to the device using firewalls or network segmentation.

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