Authenticated Remote Code Execution in Packetfence WebGui

Executive Summary

This vulnerability in Packetfence 13.2.0 allows authenticated users to execute remote code through the WebGui interface due to insufficient input validation or improper access controls.

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Detection Guidance

To detect CVE-2024-39024, check if your PacketFence version is 13.2.0. Inspect the WebGui interface under Network Configuration for the Interfaces section. Look for suspicious POST requests to /api/v1/config/interfaces with unusual vlan parameter values. Monitor logs for unexpected command execution or privilege escalation attempts by the pf user.

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Impact Analysis

An attacker with authenticated access could exploit this to run arbitrary commands on the server, potentially leading to full system compromise, data theft, or disruption of services.

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Compliance Impact

This vulnerability allows authenticated remote code execution in Packetfence 13.2.0, which could lead to unauthorized access to sensitive data. Such access may violate compliance requirements under GDPR and HIPAA by exposing personal or health information.

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Mitigation Strategies

Immediately upgrade Packetfence to a version that patches this vulnerability. Disable remote access to the WebGui interface if not required. Apply strict access controls and monitor for unauthorized code execution attempts.

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