CVE-2025-66263
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
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 30 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 50 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 100 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 300 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 500 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 1000 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 2000 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 3000 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 3500 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 6000 | affected |
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 7000 | affected |
Weaknesses
- CWE-158: CWE-158 Unauthenticated Arbitrary File Read via Null Byte Injection
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.