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Log or alert on failed 2FA codes #459

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jeffpaul opened this issue Sep 20, 2022 · 2 comments · May be fixed by #462
Open

Log or alert on failed 2FA codes #459

jeffpaul opened this issue Sep 20, 2022 · 2 comments · May be fixed by #462
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@Lucisu
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Enhancement
Milestone
0.10.0

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@jeffpaul
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Logging a placeholder issue from insight shared from @georgestephanis after finding a related tweet on this topic... We should fire off a log or alert to site admins on any failed 2FA code. Or an error_log or something. So if someone has a password but is trying to brute force a code it can get caught.
@jeffpaul jeffpaul added this to the 0.9.0 milestone Sep 20, 2022
@Lucisu Lucisu linked a pull request Oct 4, 2022 that will close this issue
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@Lucisu
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Lucisu commented Oct 4, 2022

I extended the Two_Factor_Provider class adding the function to log the failure:

two-factor/providers/class-two-factor-provider.php

Lines 75 to 106 in 3b69449

/**
* Logs the failed authentication.
*
* @param WP_User $user WP_User object of the user trying to login.
* @param string|false $code The code used to authenticate, if available.
*
* @return void
*/
public function log_failure( $user, $code = false ) {
/**
* This action is triggered when a Two Factor validation fails.
*
* @param WP_User $user WP_User object of the user trying to login.
* @param string|false $code The code used to authenticate, if available.
*/
do_action( 'two_factor_user_login_failed', $user, $code );
/* translators: %1$d: the user's ID %2$s: the code used to authenticate */
$log_message = sprintf( esc_html__( 'The user with ID %1$d failed to login using the code "%2$s"', 'two-factor' ), $user->ID, esc_html( $code ) );
/**
* This action is triggered when a Two Factor validation fails.
*
* @param boolean $should_log Whether or not the authentication failure should be logged.
* @param WP_User $user WP_User object of the user trying to login.
* @param string|false $code The code used to authenticate, if available.
* @param string $log_message The generated log message.
*/
if ( apply_filters( 'two_factor_log_failure', true, $user, $code, $log_message ) ) {
error_log( $log_message );
}
}

And added it to TOTP:

two-factor/providers/class-two-factor-totp.php

Lines 290 to 304 in 3b69449

public function validate_authentication( $user ) {
$success = false;
if ( ! empty( $_REQUEST['authcode'] ) ) {
$success = $this->is_valid_authcode(
$this->get_user_totp_key( $user->ID ),
sanitize_text_field( $_REQUEST['authcode'] )
);
}
if ( ! $success ) {
$this->log_failure( $user, ! empty( $_REQUEST['authcode'] ) ? sanitize_text_field( $_REQUEST['authcode'] ) : false );
}
return $success;
}

Now, other providers can use it.

I guess it's not the better way to use error_log, though.

@jeffpaul jeffpaul linked a pull request Oct 4, 2022 that will close this issue
Add logging function when failed to authenticate #462
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@iandunn
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iandunn commented Oct 19, 2022 •
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Related: #476 would be a good follow-up to this IMO

@iandunn iandunn mentioned this issue Nov 3, 2022
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@iandunn iandunn mentioned this issue Dec 8, 2022
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This was referenced Feb 17, 2023
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@iandunn iandunn mentioned this issue Sep 13, 2023
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@iandunn iandunn mentioned this issue Jan 30, 2024
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@jeffpaul jeffpaul modified the milestones: 0.9.0, 0.10.0 May 8, 2024
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@Lucisu Lucisu

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Add logging function when failed to authenticate Lucisu/two-factor
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@iandunn @jeffpaul @Lucisu