Important: #87298 - [SECURITY] Destroy sessions on password change

See Issue #87298

Description

If a user - backend or frontend - changes the password, all existing sessions of that user must be destroyed for security reasons.

In the core, we added functionality which takes care of this task with a DataHandler hook. Changing passwords in the backend will destroy all existing sessions of the edited user.

The frontend login extension takes care of this task if the user resets a password (password recovery process).

For all third party extensions which also handle password changes we added a method to the SessionManager class to easily integrate this important task, please check the code below:

# For any example below, we need the SessionManager
use \TYPO3\CMS\Core\Session\SessionManager;

# 1) Example: Destroy all backend user sessions for a backend user
$sessionManager = GeneralUtility::makeInstance(SessionManager::class);
$sessionBackend = $sessionManager->getSessionBackend('BE');
$sessionManager->invalidateAllSessionsByUserId($sessionBackend, (int)$id);

# 2) Example: Destroy all frontend user sessions for a frontend user
$sessionManager = GeneralUtility::makeInstance(SessionManager::class);
$sessionBackend = $sessionManager->getSessionBackend('FE');
$sessionManager->invalidateAllSessionsByUserId($sessionBackend, (int)$id);

# 3) Example: Destroy all backend user sessions for a backend user but keep and renew current backend user session
$sessionManager = GeneralUtility::makeInstance(SessionManager::class);
$sessionBackend = $sessionManager->getSessionBackend('BE');
$sessionManager->invalidateAllSessionsByUserId($sessionBackend, (int)$id, $GLOBALS['BE_USER']);

# 4) Example: Destroy all frontend user sessions for a frontend user but keep and renew current frontend user session
$sessionManager = GeneralUtility::makeInstance(SessionManager::class);
$sessionBackend = $sessionManager->getSessionBackend('FE');
$sessionManager->invalidateAllSessionsByUserId($sessionBackend, (int)$id, $GLOBALS['TSFE']->fe_user);