CVE-2025-66253
CriticalSummary
The start_upgrade.php endpoint passes user-controlled filename directly to exec() without sanitization. An unauthenticated attacker can inject arbitrary shell commands, achieving remote code execution as the web server user (likely root).
Risk Assessment
Risk of complete device compromise, potentially allowing full control over the transmitter and network.
Recommendation
Immediately secure the start_upgrade.php endpoint by sanitizing input and avoiding exec() with user data.
Original NVD description (English source)
Unauthenticated OS Command Injection (start_upgrade.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter versions 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000 allows an attacker to perform User input passed directly to exec() allows remote code execution via start_upgrade.php. The `/var/tdf/start_upgrade.php` endpoint passes user-controlled `$_GET["filename"]` directly into `exec()` without sanitization or shell escaping. Attackers can inject arbitrary shell commands using metacharacters (`;`, `|`, etc.) to achieve remote code execution as the web server user (likely root).