J-Security Center

Title: HTC OBEX FTP Service Directory Traversal Vulnerability

Severity: HIGH

Description:

The OBEX FTP service is a file-transfer protocol service available for mobile devices running Microsoft Windows Mobile. This service is implemented on the Microsoft Bluetooth stack.

The OBEX FTP service is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied data to the '-c' command-line parameter. To exploit this issue, an attacker must have authenticated access to the affected device. The attacker must also be close enough to transmit Bluetooth data to the vulnerable device.

Exploiting this issue allows the attacker to write arbitrary files to locations outside the application's current directory, download arbitrary files, and obtain sensitive information. Other attacks may also be possible.

The issue affects HTC devices running the OBEX FTP service on Windows Mobile 6.0 and 6.1.

Affected Products:

  • HTC S710
  • HTC S740
  • HTC TOUCH CRUISE
  • HTC TOUCH DIAMOND
  • HTC TOUCH FIND
  • HTC TOUCH PRO

References:

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