How to Recover/Retrieve WebLogic Password

1) First set the CLASSPATH to point weblogic.jar

Ex: set CLASSPATH=%CLASSPATH%;C:\Oracle\Middleware\wlserver_10.3\server\lib\weblogic.jar

2) Save the below script in a .py file and copy to domains directory

decrypt.py
========================================================================
import os
import weblogic.security.internal.SerializedSystemIni
import weblogic.security.internal.encryption.ClearOrEncryptedService

def decrypt(domainHomeName, encryptedPwd):
    domainHomeAbsolutePath = os.path.abspath(domainHomeName)
    encryptionService = weblogic.security.internal.SerializedSystemIni.getEncryptionService(domainHomeAbsolutePath)
    ces = weblogic.security.internal.encryption.ClearOrEncryptedService(encryptionService)
    clear = ces.decrypt(encryptedPwd)
    print "RESULT:" + clear

try:
    if len(sys.argv) == 3:
        decrypt(sys.argv[1], sys.argv[2])
    else:
  print "INVALID ARGUMENTS"
  print " Usage: java weblogic.WLST decryptPassword.py DOMAIN_HOME ENCRYPTED_PASSWORD"
  print " Example:"
  print " java weblogic.WLST decryptPassword.py D:/Oracle/Middleware/user_projects/domains/base_domain {AES}819R5h3JUS9fAcPmF58p9Wb3syTJxFl0t8NInD/ykkE="
except:
    print "Unexpected error: ", sys.exc_info()[0]
    dumpStack()
    raise

3) Execute the following command

      java weblogic.WLST decrypt.py . encrypted_password_from_boot.properties

Ex: java weblogic.WLST decrypt.py . {3DES}H6HVU9HWbD8AD2BHQajnEA==