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Application Passwords: Prevent the use of some pseudo protocols in application passwords. 

Props tykoted, xknown, peterwilsoncc, jorbin, timothyblynjacobs, martinkrcho, paulkevan, dd32, ehtis.

Built from https://develop.svn.wordpress.org/trunk@56837


git-svn-id: http://core.svn.wordpress.org/trunk@56349 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Aaron Jorbin 2023-10-12 12:41:18 +00:00
parent 4f5be9b7de
commit bd5486577c
2 changed files with 69 additions and 15 deletions
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82
wp-admin/includes/user.php
View File

@ -638,6 +638,7 @@ Please click the following link to activate your user account:
*
* @since 5.6.0
* @since 6.2.0 Allow insecure HTTP connections for the local environment.
* @since 6.3.2 Validates the success and reject URLs to prevent javascript pseudo protocol being executed.
*
* @param array $request {
* The array of request data. All arguments are optional and may be empty.
@ -651,27 +652,24 @@ Please click the following link to activate your user account:
* @return true|WP_Error True if the request is valid, a WP_Error object contains errors if not.
*/
function wp_is_authorize_application_password_request_valid( $request, $user ) {
$error = new WP_Error();
$is_local = 'local' === wp_get_environment_type();
$error = new WP_Error();
if ( ! empty( $request['success_url'] ) ) {
$scheme = wp_parse_url( $request['success_url'], PHP_URL_SCHEME );
if ( 'http' === $scheme && ! $is_local ) {
if ( isset( $request['success_url'] ) ) {
$validated_success_url = wp_is_authorize_application_redirect_url_valid( $request['success_url'] );
if ( is_wp_error( $validated_success_url ) ) {
$error->add(
'invalid_redirect_scheme',
__( 'The success URL must be served over a secure connection.' )
$validated_success_url->get_error_code(),
$validated_success_url->get_error_message()
);
}
}
if ( ! empty( $request['reject_url'] ) ) {
$scheme = wp_parse_url( $request['reject_url'], PHP_URL_SCHEME );
if ( 'http' === $scheme && ! $is_local ) {
if ( isset( $request['reject_url'] ) ) {
$validated_reject_url = wp_is_authorize_application_redirect_url_valid( $request['reject_url'] );
if ( is_wp_error( $validated_reject_url ) ) {
$error->add(
'invalid_redirect_scheme',
__( 'The rejection URL must be served over a secure connection.' )
$validated_reject_url->get_error_code(),
$validated_reject_url->get_error_message()
);
}
}
@ -700,3 +698,59 @@ function wp_is_authorize_application_password_request_valid( $request, $user ) {
return true;
}
/**
* Validates the redirect URL protocol scheme. The protocol can be anything except http and javascript.
*
* @since 6.3.2
*
* @param string $url - The redirect URL to be validated.
*
* @return true|WP_Error True if the redirect URL is valid, a WP_Error object otherwise.
*/
function wp_is_authorize_application_redirect_url_valid( $url ) {
$bad_protocols = array( 'javascript', 'data' );
if ( empty( $url ) ) {
return true;
}
// Based on https://www.rfc-editor.org/rfc/rfc2396#section-3.1
$valid_scheme_regex = '/^[a-zA-Z][a-zA-Z0-9+.-]*:/';
if ( ! preg_match( $valid_scheme_regex, $url ) ) {
return new WP_Error(
'invalid_redirect_url_format',
__( 'Invalid URL format.' )
);
}
/**
* Filters the list of invalid protocols used in applications redirect URLs.
*
* @since 6.3.2
*
* @param string[] $bad_protocols Array of invalid protocols.
* @param string $url The redirect URL to be validated.
*/
$invalid_protocols = array_map( 'strtolower', apply_filters( 'wp_authorize_application_redirect_url_invalid_protocols', $bad_protocols, $url ) );
$scheme = wp_parse_url( $url, PHP_URL_SCHEME );
$host = wp_parse_url( $url, PHP_URL_HOST );
$is_local = 'local' === wp_get_environment_type();
// validates if the proper URI format is applied to the $url
if ( empty( $host ) || empty( $scheme ) || in_array( strtolower( $scheme ), $invalid_protocols, true ) ) {
return new WP_Error(
'invalid_redirect_url_format',
__( 'Invalid URL format.' )
);
}
if ( 'http' === $scheme && ! $is_local ) {
return new WP_Error(
'invalid_redirect_scheme',
__( 'The URL must be served over a secure connection.' )
);
}
return true;
}

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.4-beta3-56836';
$wp_version = '6.4-beta3-56837';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.