Sophos Endpoint Protection Control Panel 10.7 – Weak Password Encryption

• Exploit Database
• 14 阅读

• 作者： hyp3rlinx
  日期： 2018-04-06
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/44411/

• [+] Credits: John Page (aka hyp3rlinx)		
  [+] Website: hyp3rlinx.altervista.org
  [+] Source:http://hyp3rlinx.altervista.org/advisories/SOPHOS-ENDPOINT-PROTECTION-CONTROL-PANEL-v10.7-INSECURE-CRYPTO-CVE-2018-9233.txt
  [+] ISR: Apparition Security
   
  
  
  Vendor:
  ==========
  www.sophos.com
  
  
  
  Product:
  ===========
  Sophos Endpoint Protection - Control Panel v10.7
  
  Sophos Endpoint Protection helps secure your workstation by adding prevention, detection, and response technology on top of your operating system.
  Sophos Endpoint Protection is designed for workstations running Windows and macOS. It adds exploit technique mitigations, CryptoGuard anti-ransomware,
  anti-malware, web security, malicious traffic detection, and deep system cleanup.
  
  
  
  Vulnerability Type:
  ===================
  Insecure Crypto
  
  
  
  CVE Reference:
  ==============
  CVE-2018-9233
  
  
  
  Security Issue:
  ================
  Sophos endpoint protection control panel authentication uses weak unsalted unicoded cryptographic hash (SHA1) function, not using salt allows attackers that gain access to hash 
  ability to conduct faster cracking attacks using pre-computed dictionaries, e.g. rainbow tables. This can potentially result in unauthorized access that could allow for
  changing of settings, whitelist or unquarantine files.
  
  Password and config for Sophos endpoint protection control panel is stored here:
  C:\ProgramData\Sophos\Sophos Anti-Virus\Config\machine.xml
  
  e.g.
  
  SHA1 (Unicode) encoding non salted pass = abc123
  
  <TamperProtectionManagement><settings>
  <enabled>true</enabled><password>689307D2FC53AF0FB941BC1BB42737CE4F3EF540</password></settings>
  </TamperProtectionManagement>
  
  
  Using PHP's sha1 function with "mb_convert_encoding" as UTF-16LE we can verify.
  
  C:\>php -r "print sha1(mb_convert_encoding('abc123', 'UTF-16LE', 'UTF-8'));"
  689307d2fc53af0fb941bc1bb42737ce4f3ef540
  
  
  
  Network Access:
  ===============
  Local
  
  
  
  Severity:
  =========
  Low
  
  
  Disclosure Timeline:
  =============================
  Vendor Notification: December 4, 2017
  Vendor Acknowledgement: December 12, 2017
  Vendor request additional time before disclosing.
  additional time has passed.
  April 4, 2018: Public Disclosure
  
  
  
  [+] Disclaimer
  The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
  Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
  that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
  is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
  for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
  or exploits by the author or elsewhere. All content (c).
  
  hyp3rlinx