CVE-2025-66263 (GCVE-0-2025-66263)
Vulnerability from cvelistv5
Published
2025-11-26 00:52
Modified
2025-11-26 16:10
Severity ?
8.9 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CWE
  • CWE-158 - Unauthenticated Arbitrary File Read via Null Byte Injection
Summary
Unauthenticated Arbitrary File Read via Null Byte Injection 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 Null byte injection in download_setting.php allows reading arbitrary files. The `/var/tdf/download_setting.php` endpoint constructs file paths by concatenating user-controlled `$_GET['filename']` with a forced `.tgz` extension. Running on PHP 5.3.2 (pre-5.3.4), the application is vulnerable to null byte injection (%00), allowing attackers to bypass the extension restriction and traverse paths. By requesting `filename=../../../../etc/passwd%00`, the underlying C functions treat the null byte as a string terminator, ignoring the appended `.tgz` and enabling unauthenticated arbitrary file disclosure of any file readable by the web server user.
References
Impacted products
Vendor Product Version
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter Version: 30
Version: 50
Version: 100
Version: 300
Version: 500
Version: 1000
Version: 2000
Version: 3000
Version: 3500
Version: 6000
Version: 7000
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