Google AD Sync Tool – Exposure of Sensitive Information

• Exploit Database
• 85 阅读

• 作者： Sense of Security
  日期： 2013-04-08
• 类别：

  • local
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/24923/

• Sense of Security - Security Advisory - SOS-13-001
  
  Release Date.03-Apr-2013
  Last Update. -
  Vendor Notification Date.03-Sep-2012
  Product. Google Active Directory Sync (GADS) Tool 
  Platform.Windows, Linux, Solaris
  Affected versions. All versions up to 3.1.3
  Severity Rating. High
  Impact.Exposure of sensitive information
  Attack Vector. From local without authentication
  Solution Status. Upgrade to version 3.1.6
  CVE reference. CVE - not yet assigned
  
  Details.
  Due to a weakness in the way the Java encryption algorithm
  (PBEwithMD5andDES) has been implemented in the GADS tool all 
  stored credentials can be decrypted into plain-text. This
  includes all of the encrypted passwords stored in any end-users
  saved XML configuration file, such as Active Directory accounts,
  SMTP, Proxy details, LDAP and OAuth tokens, etc.
  
  Proof of Concept.
  Using the following information from the XML and GADS tool to
  decrypt all encrypted passwords from any XML:
  
  1. The hard coded salt: 
   SALT[] = { -87, -101, -56, 50, 86, 53, -29, 3 }
  2. The hard coded DES interation count: 
   ITERATION_COUNT = 20
  3. The Secret key derived from the uniqueID value in the XML: 
   6512630db9a74d90a5531f574b85f398
  4. The cipher-text from the XML: 
   <encryptedAdminPassword>1edOUtamjNA=</encryptedAdminPassword>
  5. The algorithm: PBEwithMD5andDES
  
  The decrypted value is: winning!
  
  Solution.
  Upgrade to version 3.1.6
  
  Discovered by.
  Nathaniel Carew from Sense of Security Labs.
  
  About us.
  Sense of Security is a leading provider of information security and
  risk management solutions. Our team has expert skills in assessment 
  and assurance, strategy and architecture, and deployment through to
  ongoing management. We are Australia's premier application penetration
  testing firm and trusted IT security advisor to many of the country's
  largest organisations.
  
  Sense of Security Pty Ltd 
  Level 8, 66 King St
  Sydney NSW 2000
  AUSTRALIA
  
  T: +61 (0)2 9290 4444
  F: +61 (0)2 9290 4455
  W: http://www.senseofsecurity.com.au/consulting/penetration-testing
  E: info@senseofsecurity.com.au
  Twitter: @ITsecurityAU
  
  The latest version of this advisory can be found at:
  http://www.senseofsecurity.com.au/advisories/SOS-13-001.pdf
  
  Other Sense of Security advisories can be found at:
  http://www.senseofsecurity.com.au/research/it-security-advisories.php