SKT LTE Wi-Fi SDT-CW3B1 suffers from an unauthorized administrative credential modification vulnerability.
042dfaa411f0a07839398500c043d5b9# Exploit Title: SKT LTE Wi-Fi SDT-CW3B1 - Unauthorized Admin Credential Change
# Shodan Dork: SDT-CW3B1
# Date: 2018-05-23
# Exploit Author: Safak Aslan
# Vendor Homepage: http://telesquare.co.kr/
# Version: SKT CW3B1 sw version 1.2.0
# Tested on: Windows
# CVE: -
# Class: Unauthorized Admin Credential Change
# Impact: The attacker can access, change and remove admin's credential and sensitive data of the device.
# Remotely Exploitable: Yes
# Authentication Required: No
# Vulnerability Description
/admin/management.shtml --> System Management access without authentication
# Using the directory of /admin/management.shtml, it is possible to access directly System Management without authentication.
# The attacker has a right to change User ID,
# Password for General User, User ID, and Password for Admin.
# Proof-of-Concept
http://targetIP/admin/management.shtml
# Additional Info
Additionally, the attacker can reach without authorization the below directories.
/admin/upload_firmware.shtml (Router firmware and lte firmware upgrade)
/internet/wan.shtml (WAN settings info leak)
/index.html (Version and status info leak)
/nas/ftpsrv.shtml (The settings of FTP)
/wifi2g/basic.shtml (The settings of Wireless)
/admin/status.shtml (The leak information of access point status)
/internet/lan.shtml (The leak information of LAN settings)
/admin/statistic.shtml (System statistics info leak)
/serial/serial_direct.shtml (The settings of direct serial)
/admin/upload_firmware.shtml (Router Firmware and LTE Firmware upgrade)