DB Electronica Telecomunicazioni Mozart FM Transmitter up to 7000 restore_mozzi_memories.sh path traversal

Summaryinfo

A vulnerability described as critical has been identified in DB Electronica Telecomunicazioni Mozart FM Transmitter up to 7000. The affected element is an unknown function of the file restore_mozzi_memories.sh. Such manipulation leads to path traversal. This vulnerability is listed as CVE-2025-66262. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in DB Electronica Telecomunicazioni Mozart FM Transmitter up to 7000. It has been rated as critical. Affected by this issue is an unknown code block of the file restore_mozzi_memories.sh. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Arbitrary File Overwrite via Tar Extraction Path Traversal 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 Tar extraction with -C / allow arbitrary file overwrite via crafted archive. The `restore_mozzi_memories.sh` script extracts user-controlled tar archives with `-C /` flag, depositing contents to the filesystem root without path validation. When combined with the unauthenticated file upload vulnerabilities (CVE-01, CVE-06, CVE-07), attackers can craft malicious .tgz archives containing path-traversed filenames (e.g., `etc/shadow`, `var/www/index.php`) to overwrite critical system files in writable directories, achieving full system compromise.

The weakness was presented by Abdul Mhanni. The advisory is shared for download at abdulmhsblog.com. This vulnerability is handled as CVE-2025-66262 since 11/26/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/04/2025). The MITRE ATT&CK project declares the attack technique as T1006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Vendor

• DB Electronica Telecomunicazioni

Name

• Mozart FM Transmitter

Version

• 30
• 50
• 100
• 300
• 500
• 1000
• 2000
• 3000
• 3500
• 6000
• 7000

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