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Directory Traversal Vulnerability in Frigate 3 FTP Client

Advisory ID:HTB22526
Product:Frigate 3
Vendor:WinFrigate
Vulnerable Versions:3.36 and probably prior
Tested Version:3.36
Advisory Publication:July 22, 2010 [without technical details]
Vendor Notification:July 22, 2010
Public Disclosure:August 5, 2010
Vulnerability Type:Path Traversal [CWE-22]
CVE Reference:CVE-2010-3097
Risk Level:High
CVSSv2 Base Score:7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered vulnerability in Frigate 3 built-in FTP client which could be exploited to execute arbitrary code on vulnerable system.


1) Directory Traversal Vulnerability in Frigate 3 FTP Client: CVE-2010-3097

The vulnerability exists due to insufficient sanitation of the downloaded filename. A remote attacker controlling an FTP server can trick user into downloading file with specially crafted filename, containing directory traversal sequences (e.g. "..\..\..\..\..\..\..\somefile.exe") and write it into arbitrary locations on the target system. Successful exploitation might allow remote code execution but requires that victim uses Frigate 3 FTP Client to connect to the FTP server and download a malicious file.


Solution:
Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.


ImmuniWeb® by High-Tech Bridge


References:
[1] High-Tech Bridge Advisory HTB22526 - https://www.htbridge.com/advisory/HTB22526 - Directory Traversal Vulnerability in Frigate 3 FTP Client
[2] Frigate3 - frigate3.com- Frigate3 is a handy file manager with wealth of options that make managing and browsing through files easy.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

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