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Enhance security by adding support for 2-factor-authentication via Google Authenticator #6197

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pma-import opened this Issue Feb 2, 2014 · 31 comments

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pma-import commented Feb 2, 2014

My hoster recently added support for securing the hosting admin panel with 2-Factor-Authentification, using Google Authenticator. The only "weak" link left is the phpmyadmin access which does not support that.

It would be great if users would have the option within PMA settings to enable 2-Factor-Authentication to further secure their databases and prevent brute-force-attacks if the login site is publicly available.

More infos on Google Authenticator can be found here: http://code.google.com/p/google-authenticator/


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pma-import Mar 18, 2014

Hi,

Maybe this project could be a GSoC idea ? I would be glad to submit a proposal about this feature but I would like to make sure that it could be accepted as a GSoC project


  • Original author: maxday-udes

pma-import commented Mar 18, 2014

Hi,

Maybe this project could be a GSoC idea ? I would be glad to submit a proposal about this feature but I would like to make sure that it could be accepted as a GSoC project


  • Original author: maxday-udes
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pma-import Mar 18, 2014

It wouldn't be able to stand alone as a GSoC idea due to the expected timeline; a proposal is supposed to take approximately the full summer (which generally has meant approximately 12 forty hour weeks). So if this project could be incorporated with other work to make a proposal that takes approximately "all summer", then it certainly could be used as such, but by itself is not likely to be chosen because of the timeline expectation.


  • Original author: ibennetch

pma-import commented Mar 18, 2014

It wouldn't be able to stand alone as a GSoC idea due to the expected timeline; a proposal is supposed to take approximately the full summer (which generally has meant approximately 12 forty hour weeks). So if this project could be incorporated with other work to make a proposal that takes approximately "all summer", then it certainly could be used as such, but by itself is not likely to be chosen because of the timeline expectation.


  • Original author: ibennetch
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pma-import Mar 18, 2014

OK ! Thanks, I'm going to add some other features to my proposal


  • Original author: maxday-udes

pma-import commented Mar 18, 2014

OK ! Thanks, I'm going to add some other features to my proposal


  • Original author: maxday-udes
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pma-import May 2, 2014

I would love to see this for user logins! How would this work for programs or websites that try to read/write to a database? How would they get the random security key?


  • Original author: supawiz6991

pma-import commented May 2, 2014

I would love to see this for user logins! How would this work for programs or websites that try to read/write to a database? How would they get the random security key?


  • Original author: supawiz6991
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pma-import May 3, 2014

Hi supawiz6991, since other programs and websites access the database directly rather than going through phpMyAdmin, when/if we implement this in phpMyAdmin it won't have any effect on those other programs. If implemented, this would strictly be for user authentication to phpMyAdmin.


  • Original author: ibennetch

pma-import commented May 3, 2014

Hi supawiz6991, since other programs and websites access the database directly rather than going through phpMyAdmin, when/if we implement this in phpMyAdmin it won't have any effect on those other programs. If implemented, this would strictly be for user authentication to phpMyAdmin.


  • Original author: ibennetch
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pma-import May 8, 2014

Awesome! I hope that IF turns into a WILL !


  • Original author: supawiz6991

pma-import commented May 8, 2014

Awesome! I hope that IF turns into a WILL !


  • Original author: supawiz6991
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pma-import Oct 8, 2014

I actually just implemented Google Auth, Authy and a custom made OTP grid in a program I wrote and I might be willing to implement Google Auth for phpMyAdmin. However I don't quite know the logistics of how it would work since I am unfamiliar with phpMyAdmin (I just use it, but never contributed to it before).

I'm assuming we want a different secret key for each user, right? We could also provide the option to have a single "master" secret key for all accounts if required as well (e.g. if system administrators are the only ones who will be accessing PMA and they have access to multiple accounts). For multi-user environments, I see that PMA has a configuration storage and it looks like I could probably just use the pma__userconfig table to store the secret keys and a couple of other settings. However I am unaware how this table is populated. Is an entry added every time a new user logs in or is it somehow pre-populated? Does the username match the username used to log in? What happens if the system user is altered, added or deleted?

I propose adding the following configuration variables:

/* Integer 
    Values:
    0 - Google authentication is disabled for all users
    1 - Google authentication is enabled for all users
    2 - Google authentication is ONLY required for the users in the user list
    3 - Google authentication is required for all users except the users in the user list
 */
$cfg['Servers'][$i]['GoogleAuthenticationEnabled'];

/* String - Comma separated list of users. See previous option. */
$cfg['Servers'][$i]['GoogleAuthenticationUserList'];

Then, this behavior:

  • If Google Authentication is disabled either globally or for a user, allow them to log in just like right now
  • If Google Authentication is enabled for a user but it hasn't been configured yet, after a successful login, present a screen to configure it. They will be presented with a QR code and a manual secret key to enter into their device. When the user enters the first OTP value correctly, the corresponding secret key is saved in the database with for that user and they are allowed to continue.
  • If Google Authentication is enabled for a user and it has been configured, after a successful login, present a screen to provide their next OTP value and allow them to continue if it is correct.
  • We will need to add a session variable, something like OTPValidated so that the user doesn't have access to anything until that is set to true because logging in is now going to be two separate steps.

I do have a few doubts though:

  • What should the behavior be if a user loses their device and are unable to log in?
  • Should we allow the root user to remove Google Authentication from a user so that they can reconfigure it when they next log in?
  • If GoogleAuthenticationEnabled is set to 2 or 3, should we allow the user to either opt in or opt out of using Google Authentication for their account after they have logged in? If so, is there an option within PMA to write to config.inc.php if it is writable by the HTTP user or does it always have to be written manually?

Comments? Questions?


  • Original author: mikerobinson

pma-import commented Oct 8, 2014

I actually just implemented Google Auth, Authy and a custom made OTP grid in a program I wrote and I might be willing to implement Google Auth for phpMyAdmin. However I don't quite know the logistics of how it would work since I am unfamiliar with phpMyAdmin (I just use it, but never contributed to it before).

I'm assuming we want a different secret key for each user, right? We could also provide the option to have a single "master" secret key for all accounts if required as well (e.g. if system administrators are the only ones who will be accessing PMA and they have access to multiple accounts). For multi-user environments, I see that PMA has a configuration storage and it looks like I could probably just use the pma__userconfig table to store the secret keys and a couple of other settings. However I am unaware how this table is populated. Is an entry added every time a new user logs in or is it somehow pre-populated? Does the username match the username used to log in? What happens if the system user is altered, added or deleted?

I propose adding the following configuration variables:

/* Integer 
    Values:
    0 - Google authentication is disabled for all users
    1 - Google authentication is enabled for all users
    2 - Google authentication is ONLY required for the users in the user list
    3 - Google authentication is required for all users except the users in the user list
 */
$cfg['Servers'][$i]['GoogleAuthenticationEnabled'];

/* String - Comma separated list of users. See previous option. */
$cfg['Servers'][$i]['GoogleAuthenticationUserList'];

Then, this behavior:

  • If Google Authentication is disabled either globally or for a user, allow them to log in just like right now
  • If Google Authentication is enabled for a user but it hasn't been configured yet, after a successful login, present a screen to configure it. They will be presented with a QR code and a manual secret key to enter into their device. When the user enters the first OTP value correctly, the corresponding secret key is saved in the database with for that user and they are allowed to continue.
  • If Google Authentication is enabled for a user and it has been configured, after a successful login, present a screen to provide their next OTP value and allow them to continue if it is correct.
  • We will need to add a session variable, something like OTPValidated so that the user doesn't have access to anything until that is set to true because logging in is now going to be two separate steps.

I do have a few doubts though:

  • What should the behavior be if a user loses their device and are unable to log in?
  • Should we allow the root user to remove Google Authentication from a user so that they can reconfigure it when they next log in?
  • If GoogleAuthenticationEnabled is set to 2 or 3, should we allow the user to either opt in or opt out of using Google Authentication for their account after they have logged in? If so, is there an option within PMA to write to config.inc.php if it is writable by the HTTP user or does it always have to be written manually?

Comments? Questions?


  • Original author: mikerobinson
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pma-import Oct 15, 2014

Hey Mike,
your proposition looks complete and correct, except having a user list in config.inc.php (see below).

A few answers:

  • pma__userconfig is populated after a user directly changes a setting that is stored in this table
  • it's not normally pre-populated but it could be pre-populated
  • its username matches the username used to log in
  • when a user is deleted from MySQL via phpMyAdmin, it's not removed from pma__userconfig (maybe a bug)
  • if a user loses the device, she should ask the server admin to reset her account definition (new shared key or add her account in the list of exceptions)

About opting in or out, we cannot rely on config.inc.php being writable; it would be better to add a table to the phpMyAdmin configuration storage, to contain a user list and their Google Auth status.


  • Original author: lem9

pma-import commented Oct 15, 2014

Hey Mike,
your proposition looks complete and correct, except having a user list in config.inc.php (see below).

A few answers:

  • pma__userconfig is populated after a user directly changes a setting that is stored in this table
  • it's not normally pre-populated but it could be pre-populated
  • its username matches the username used to log in
  • when a user is deleted from MySQL via phpMyAdmin, it's not removed from pma__userconfig (maybe a bug)
  • if a user loses the device, she should ask the server admin to reset her account definition (new shared key or add her account in the list of exceptions)

About opting in or out, we cannot rely on config.inc.php being writable; it would be better to add a table to the phpMyAdmin configuration storage, to contain a user list and their Google Auth status.


  • Original author: lem9
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pma-import Feb 15, 2015

  • Priority: 4 --> Normal

  • Original author: lem9

pma-import commented Feb 15, 2015

  • Priority: 4 --> Normal

  • Original author: lem9

@lem9 lem9 changed the title from Feature request: enhance security by adding support for 2-factor-authentication via Google Authenticator to Enhance security by adding support for 2-factor-authentication via Google Authenticator Aug 13, 2015

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fedeisas commented Sep 23, 2015

👍

@lem9 lem9 self-assigned this Nov 5, 2015

@nijel nijel unassigned lem9 Jan 28, 2016

@ibennetch ibennetch self-assigned this Feb 10, 2016

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Napoleon-BlownApart Feb 19, 2016

An excellent proposal! PMA is the weak link in my server's security atm and I'm eager to see this implemented. How is it coming along?
My server is based on Ubuntu 14.04, will I need to use a PPA or will this make it into Ubuntu's standard package database? (I know you can't speak for Canonical, but this is really an important development.)

Cheers,
Nap

Napoleon-BlownApart commented Feb 19, 2016

An excellent proposal! PMA is the weak link in my server's security atm and I'm eager to see this implemented. How is it coming along?
My server is based on Ubuntu 14.04, will I need to use a PPA or will this make it into Ubuntu's standard package database? (I know you can't speak for Canonical, but this is really an important development.)

Cheers,
Nap

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emanuelb commented Oct 22, 2016

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Unfortunately the PHP API doesn't support pluggable authentication (yet). It depends on client side plugin to ask additional credential, see https://mariadb.com/kb/en/mariadb/development-pluggable-authentication/#dialog-client-plugin.

PS: Anyway I don't think 2FA on MySQL server side is usable for usual MySQL hosting setup where most of the connections are done from programs than from users.

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nijel commented Oct 24, 2016

Unfortunately the PHP API doesn't support pluggable authentication (yet). It depends on client side plugin to ask additional credential, see https://mariadb.com/kb/en/mariadb/development-pluggable-authentication/#dialog-client-plugin.

PS: Anyway I don't think 2FA on MySQL server side is usable for usual MySQL hosting setup where most of the connections are done from programs than from users.

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Napoleon-BlownApart Oct 26, 2016

I don't agree. phpMyAdmin is an interface to access MySQL, so implementing 2FA in MySQL is a completely separate matter. In so far as phpMyAdmin is concerned; Joomla is able to provide 2FA, so it should be possible to do likewise for phpMyAdmin (say taking the Joomla code and tweaking it).

Napoleon-BlownApart commented Oct 26, 2016

I don't agree. phpMyAdmin is an interface to access MySQL, so implementing 2FA in MySQL is a completely separate matter. In so far as phpMyAdmin is concerned; Joomla is able to provide 2FA, so it should be possible to do likewise for phpMyAdmin (say taking the Joomla code and tweaking it).

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I'm not against implementing 2FA (or U2F) in phpMyAdmin, I've just commented on @emanuelb suggestion to use 2FA from MySQL that it's currently not possible from PHP.

Still this will be a bit tricky as we start with MySQL credentials only and user would be forced to setup 2FA on first login. This would still leave window for attack for users who have never logged in.

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nijel commented Oct 27, 2016

I'm not against implementing 2FA (or U2F) in phpMyAdmin, I've just commented on @emanuelb suggestion to use 2FA from MySQL that it's currently not possible from PHP.

Still this will be a bit tricky as we start with MySQL credentials only and user would be forced to setup 2FA on first login. This would still leave window for attack for users who have never logged in.

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Napoleon-BlownApart Oct 28, 2016

@nijel, understand. I read my comment after I submitted and realised that I misunderstood what you had said.
I've put some thoughts below on how it could be managed in phpMyAdmin, particularly in light of (at least some) 3rd party tools that allow management of database users.
In some ways it's actually a good thing that this is being arranged outside of MySQL, because it would not break tools such as MySQL Workbench, and existing PHP applicaitons.
Also, not every user wants this feature. For example, I don't want 2FA hassels on my localhost WAMP server that I use for development. But I do want/need 2FA on my production server.

phpMyAdmin, under user management, should allow 2FA

  1. to be enabled/disabled, (depending on the setting of the 2FA Usage parameter described below)
  2. credentials to be managed managed (if enabled).
    This could be done per account using MySQL's permission system.

phpMyAdmin could provide an API for configuring 2FA which would allow externally created accounts, such as through cPanel, ISPConfig, etc. to setup credentials in addition to other account attributes.
Then, back in phpMyAdmin, the administrator could configure 2FA usage with the following two global switches;
2FA Usage:

  1. 2FA required for all accounts,
  2. 2FA configured per account
  3. Don't use 2FA

and, if 2FA Usage is enabled:
2FA Credential configuration:

  1. Only preconfigured 2FA,
  2. Allow creation of 2FA credentials on 1st login

Napoleon-BlownApart commented Oct 28, 2016

@nijel, understand. I read my comment after I submitted and realised that I misunderstood what you had said.
I've put some thoughts below on how it could be managed in phpMyAdmin, particularly in light of (at least some) 3rd party tools that allow management of database users.
In some ways it's actually a good thing that this is being arranged outside of MySQL, because it would not break tools such as MySQL Workbench, and existing PHP applicaitons.
Also, not every user wants this feature. For example, I don't want 2FA hassels on my localhost WAMP server that I use for development. But I do want/need 2FA on my production server.

phpMyAdmin, under user management, should allow 2FA

  1. to be enabled/disabled, (depending on the setting of the 2FA Usage parameter described below)
  2. credentials to be managed managed (if enabled).
    This could be done per account using MySQL's permission system.

phpMyAdmin could provide an API for configuring 2FA which would allow externally created accounts, such as through cPanel, ISPConfig, etc. to setup credentials in addition to other account attributes.
Then, back in phpMyAdmin, the administrator could configure 2FA usage with the following two global switches;
2FA Usage:

  1. 2FA required for all accounts,
  2. 2FA configured per account
  3. Don't use 2FA

and, if 2FA Usage is enabled:
2FA Credential configuration:

  1. Only preconfigured 2FA,
  2. Allow creation of 2FA credentials on 1st login
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pwallner Mar 16, 2017

Would love to have two-factor login (eighter google aut. or U2F)...

pwallner commented Mar 16, 2017

Would love to have two-factor login (eighter google aut. or U2F)...

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modihere Mar 22, 2017

will the user be able to use 2-factor authentication if he in not connected to the internet?

modihere commented Mar 22, 2017

will the user be able to use 2-factor authentication if he in not connected to the internet?

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There is no need for internet connection with 2FA/U2F.

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nijel commented Mar 22, 2017

There is no need for internet connection with 2FA/U2F.

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pwallner commented Mar 22, 2017

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modihere Mar 22, 2017

i have a few questions and would be glad if someone could answer them..
Are there any other authenticator except google authenticator?
Is this authenticator a plugin or i will have to write its code from scratch?
And can someone please explain to me in little detail how this authenticator works so that i can frame my gsoc proposal for this feature accordingly?

modihere commented Mar 22, 2017

i have a few questions and would be glad if someone could answer them..
Are there any other authenticator except google authenticator?
Is this authenticator a plugin or i will have to write its code from scratch?
And can someone please explain to me in little detail how this authenticator works so that i can frame my gsoc proposal for this feature accordingly?

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Achilles-96 commented Mar 22, 2017

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This is an interesting project that I do support, but I have some question about how we should also support the MariaDB pluggable authentication mentioned by Emanuel. I think we should, but also think that adding that support is outside the scope of this request and should be a new and separate issue.

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ibennetch commented Mar 22, 2017

This is an interesting project that I do support, but I have some question about how we should also support the MariaDB pluggable authentication mentioned by Emanuel. I think we should, but also think that adding that support is outside the scope of this request and should be a new and separate issue.

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modihere Mar 22, 2017

how will this work on windows phone(which i personally use..:P) and java phone which does not support google authenticator?

modihere commented Mar 22, 2017

how will this work on windows phone(which i personally use..:P) and java phone which does not support google authenticator?

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@ibennetch Adding support for MariaDB pluggable authentication is IMHO unrelated to this.

@modivivek Find any application supporting TOTP. A first query in Google showed me
Authenticator+
, but there will be certainly more apps (at least I assume, there are at least 10 applications implementing this on Android). You can also find some implementations on Wikipedia.

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nijel commented Mar 22, 2017

@ibennetch Adding support for MariaDB pluggable authentication is IMHO unrelated to this.

@modivivek Find any application supporting TOTP. A first query in Google showed me
Authenticator+
, but there will be certainly more apps (at least I assume, there are at least 10 applications implementing this on Android). You can also find some implementations on Wikipedia.

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Hello. I am working on this as part of GSoC. I am stuck on storing the secrets. Where should we store the shared secret generated?

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Achilles-96 commented Jul 12, 2017

Hello. I am working on this as part of GSoC. I am stuck on storing the secrets. Where should we store the shared secret generated?

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Probably creating new table in the configuration storage...

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nijel commented Jul 12, 2017

Probably creating new table in the configuration storage...

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Do you mean the phpmyadmin database.

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Achilles-96 commented Jul 12, 2017

Do you mean the phpmyadmin database.

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@nijel nijel assigned nijel and unassigned ibennetch Oct 31, 2017

@nijel nijel added this to the 4.8.0 milestone Oct 31, 2017

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add basic code for HOTP and TOTP
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>
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I've given this another try, you can find implementation of both U2F and 2FA in #13787, feedback welcome.

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nijel commented Oct 31, 2017

I've given this another try, you can find implementation of both U2F and 2FA in #13787, feedback welcome.

nijel added a commit to nijel/phpmyadmin that referenced this issue Oct 31, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Nov 1, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Nov 1, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>

nijel added a commit to nijel/phpmyadmin that referenced this issue Nov 1, 2017

Add support for HOTP and TOTP authentication
This supports Google Authenticator and similar applications.

Issue phpmyadmin#6197

Signed-off-by: Michal Čihař <michal@cihar.com>
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Implemented by #13787.

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nijel commented Nov 1, 2017

Implemented by #13787.

@nijel nijel closed this Nov 1, 2017

nijel added a commit that referenced this issue Nov 2, 2017

Changelog entry for #6197 and #13787
Signed-off-by: Michal Čihař <michal@cihar.com>
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