J-Security Center

Title: 3D-FTP 'LIST' and 'MLSD' Directory Traversal Vulnerabilities

Severity: HIGH

Description:

3D-FTP is an FTP client for Microsoft Windows.

3D-FTP is prone to multiple directory-traversal vulnerabilities because it fails to sufficiently sanitize user-supplied input data.

A remote attacker could exploit these issues using directory-traversal strings (such as '../') to write arbitrary files to locations outside of the FTP client's current directory. The attacker can exploit this issue by hosting a malicious FTP server and sending crafted responses to the 'LIST' and 'MLSD' commands. Successful exploits could help the attacker launch further attacks.

NOTE: Files uploaded to the 'C:\Documents and Settings\All Users\Start Menu\Programs\Startup' directory will automatically be processed when the computer is rebooted. This could result in a compromise.

3D-FTP 8.01 is vulnerable; other versions may also be affected.

Affected Products:

  • 3D-FTP 3D-FTP 8.01

References:

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