UltraEdit FTP/SFTP 'LIST' Command Directory Traversal Vulnerability

Bugtraq ID:	29784
Class:	Input Validation Error
CVE:	CVE-2008-2795
Remote:	Yes
Local:	No
Published:	Jun 17 2008 12:00AM
Updated:	May 07 2015 05:28PM
Credit:	Tan Chew Keong
Vulnerable:	IDM Computer Solutions UltraEdit 14.00b
Not Vulnerable:

UltraEdit FTP/SFTP 'LIST' Command Directory Traversal Vulnerability

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

Exploiting this issue 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.

UltraEdit 14.00b is vulnerable; other versions may also be affected.

UltraEdit FTP/SFTP 'LIST' Command Directory Traversal Vulnerability

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

The following proofs of concept are available:

Response to LIST (backslash):

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

Response to LIST (forward-slash):
/../../../../../../../../../testfile.txt\r\n

Response to LIST (backslash and forward-slash):
../..\/..\/..\/../..\/../..\/../testfile.txt\r\n

UltraEdit FTP/SFTP 'LIST' Command Directory Traversal Vulnerability

Solution:
Reports indicate that the vendor has released a fix, but Symantec was unable to confirm this information. Please contact the vendor for details.

UltraEdit FTP/SFTP 'LIST' Command Directory Traversal Vulnerability

References:

• UltraEdit FTP/SFTP Browser Directory Traversal Vulnerability (Tan Chew Keong)
  
• UltraEdit Product Page (IDM Computer Solutions, Inc.)