Glub Tech Secure FTP 'LIST' Command Directory Traversal Vulnerability

Bugtraq ID:	29741
Class:	Input Validation Error
CVE:	CVE-2008-2821
Remote:	Yes
Local:	No
Published:	Jun 13 2008 12:00AM
Updated:	May 07 2015 05:28PM
Credit:	Tan Chew Keong
Vulnerable:	Glub Tech Secure FTP 2.5.15
Not Vulnerable:	Glub Tech Secure FTP 2.5.16

Glub Tech Secure FTP 'LIST' Command Directory Traversal Vulnerability

Glub Tech Secure FTP is prone to a directory-traversal vulnerability because the application fails to sufficiently sanitize user-supplied input. This issue occurs in the FTP client.

Exploiting these issues will allow an attacker to write arbitrary files to locations outside of the application's current directory. This could help the attacker launch further attacks.

Secure FTP 2.5.15 for Microsoft Windows is vulnerable; other versions may also be affected.

Glub Tech Secure FTP 'LIST' Command Directory Traversal Vulnerability

An attacker can exploit this issue by enticing an unsuspecting victim to connect to a malicious server.

The following proof of concept is available:

Response to LIST:

\..\..\..\..\..\..\..\..\..\testfile.txt\r\n

Glub Tech Secure FTP 'LIST' Command Directory Traversal Vulnerability

Solution:
The vendor has addressed this issue in Secure FTP 2.5.16. Contact the vendor for details.

Glub Tech Secure FTP 'LIST' Command Directory Traversal Vulnerability

References:

• Glub Tech Secure FTP FTP-Client Directory Traversal Vulnerability (Tan Chew Keong)
  
• Glub Tech Secure FTP Homepage (Glub Tech)