جزئیات آسیب‌پذیری

FrontAccounting through 2.4.20 stores and verifies user passwords as unsalted MD5 digests. admin/users.php passes md5($_POST['password']) to add_user() and update_user_password(), admin/change_current_user_password.php does the same when a user changes their own password, the forgotten-password path in includes/current_user.inc hashes the newly generated password the same way, and authentication calls get_user_auth($loginname, md5($password)). The codebase applies no per-password salt and contains no call to password_hash(), password_verify() or any other adaptive hash, so identical passwords yield identical digests and an attacker who obtains the user table can recover plaintext passwords with precomputed lookup tables or high-rate GPU cracking.

• https://github.com/geo-chen/oss/blob/main/FA.md#finding-2-unsalted-md5-password-hashing-in-frontaccounting third-party-advisory
• https://github.com/FrontAccountingERP/FA product
• https://github.com/FrontAccountingERP/FA/blob/9464a3ffef03c139d9396e697bce9a0a9f131a72/includes/current_user.inc#L79 technical-description
• https://www.vulncheck.com/advisories/frontaccounting-through-2.4.20-use-of-unsalted-md5-for-password-storage third-party-advisory