Google AD Sync Tool Vulnerability (GADS)

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!

#  0day.today [2017-12-31]  #