How can I decrypt MySQL passwords

Question

The developer who created a platform my company uses is no longer working for us and I don t know how I can retrieve the passwords from a custom PHP application   When I look in the PHPmyAdmin the passwords are ecrypted  eg  2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19   How can I change or retrieve these

User · Answer

Hashing is a one-way process but using a password-list you can regenerate the hashes and compare to the stored hash to 'crack' the password.

This site https://crackstation.net/ attempts to do this for you - run through passwords lists and tell you the cleartext password based on your hash.

User · Answer

You can t decrypt password in mysql  because password is hashed by using md5 hash algorithm  which is not an encoding algorithm

User · Answer

If a proper encryption method was used  it s not going to be possible to easily retrieve them   Just reset them with new passwords   Edit  The string looks like it is using PASSWORD     UPDATE user SET password   PASSWORD  newpassword

User · Answer

just change them to password  yourpassword

User · Answer

How can I decrypt MySQL passwords   You can t really because they are hashed and not encrypted   Here s the essence of the PASSWORD function that current MySQL uses  You can execute it from the sql terminal   mysql gt  SELECT SHA1 UNHEX SHA1  password        ------------------------------------------    SHA1 UNHEX SHA1  password                   ------------------------------------------    2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19    ------------------------------------------  1 row in set  0 00 sec         How can I change or retrieve these    If you are having trouble logging in on a debian or ubuntu system  first try this  thanks to tohuwawohu at https   askubuntu com questions 120718 cant-log-to-mysql      sudo cat  etc mysql debian conf   grep -i password     password  QWERTY12345      Then  log in with the debian maintenance user     mysql -u debian-sys-maint -p password    Finally  change the user s password   mysql gt  UPDATE mysql user SET Password PASSWORD  new password   WHERE User  root   mysql gt  FLUSH PRIVILEGES  mysql gt  quit         When I look in the PHPmyAdmin the passwords are encrypted   Related  if you need to dump the user database for the relevant information  try   mysql gt  SELECT User Host Password FROM mysql user   ------------------ ----------- ----------------------    User               Host        Password                ------------------ ----------- ----------------------    root               localhost    0123456789ABCDEF        root               127 0 0 1    0123456789ABCDEF        root                 1          0123456789ABCDEF        debian-sys-maint   localhost    ABCDEF0123456789       ------------------ ----------- ----------------------    And yes  those passwords are NOT salted  So an attacker can prebuild the tables and apply them to all MySQL installations  In addition  the adversary can learn which users have the same passwords   Needles to say  the folks at mySQL are not following best practices  John Steven did an excellent paper on Password Storage Best Practice at OWASP s Password Storage Cheat Sheet  In fairness to the MySQL folks  they may be doing it because of pain points in the architecture  design or implementation  I simply don t know      If you use the PASSWORD and UPDATE commands and the change does not work  then see http   dev mysql com doc refman 5 0 en resetting-permissions html  Even though the page is named  resetting permissions   its really about how to change a password   Its befuddling the MySQL password change procedure is so broken that you have to jump through the hoops  but it is what it is

User · Answer

Simply best way from linux server  sudo mysql --defaults-file  etc mysql debian cnf -e  use mysql UPDATE user SET password PASSWORD  snippetbucket-technologies   WHERE user  root  FLUSH PRIVILEGES     This way work for any linux server  I had 100  sure on Debian and Ubuntu you win

User · Answer

With luck  if the original developer was any good  you will not be able to get the plain text out  I say  luck  otherwise you probably have an insecure system   For the admin passwords  as you have the code  you should be able to create hashed passwords from a known plain text such that you can take control of the application  Follow the algorithm used by the original developer   If they were not salted and hashed  then make sure you do apply this as  best practice

[mysql] How can I decrypt MySQL passwords

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