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* [Security] Add per-address rate limiting for auth endpoints Introduce a thread-safe RateLimiter that tracks attempts per key (IP address) within a sliding time window, and wire it into the authentication endpoints: - Login: failed login attempts from an address are counted; once the configured maximum is exceeded within the window, further logins from that address are rejected with RespTooManyRequests. A successful login clears the failed attempts for that address. - Registration: implement the previously stubbed tooManyRegistrationAttempts, limiting how many accounts can be created per address per window. - Forgot-password: throttle both the email-request and the email-challenge paths per address. New [security] settings with defaults: max_login_attempts_per_ip=5 / login_attempt_window_seconds=900 max_registrations_per_ip=2 / registration_window_seconds=3600 max_forgot_password_requests_per_ip=3 / forgot_password_window_seconds=3600 Adds unit tests for the RateLimiter (window limit, over-limit blocking, clearing, per-key independence). Took 3 minutes * [Server] Fix rate limiter: disable semantics, draining window, bounded keys, pre-work login gate - recordAttempt()/isBlocked() return false when maxAttempts <= 0 or windowSeconds <= 0, so the documented 'set to 0 to disable' actually disables instead of blocking every address permanently - Keys at their limit are rejected without recording, so repeated attempts at the attacker's pace cannot keep sliding the window and holding the lockout open; a block now clears once the recorded attempts age out of windowSeconds - Attempts map is bounded: an opportunistic prune (every 60s) erases keys whose attempts have fully aged out - Login is throttled before the work: isLoginRateLimited() (a new virtual on Server, backed by isBlocked()) gates loginUser(), so a locked-out address no longer burns a database round trip and password verification per attempt - recordAttemptAt()/isBlockedAt() time seams make the sliding-window behaviour deterministically testable; tests rewritten for the real semantics (no reliance on the maxAttempts=0 bug, no sleeps) * [Server] Inform client of login/registration rate limit timeout - Add retryAfterSeconds/retryAfterSecondsAt to RateLimiter to compute seconds until oldest attempt exits the sliding window - Expose loginRateLimitRemainingSeconds via Server/Servatrice - Include denied_end_time (absolute epoch) in RespTooManyRequests for login pre-auth and when transitioning to lockout after failed attempt - Include denied_end_time in registration rate limit response - Client: show retry time for login RespTooManyRequests - Client: simplify registration RespTooManyRequests message to show retry time when provided - Add test for retryAfterSecondsAt * [Client] Restore registration guidance and drop duplicated rate limit reason The registration RespTooManyRequests case now only shows the retry-after copy when the server actually sent a denied_end_time; the per-email account cap path (no end time) falls back to the previous guidance about already having an account and contacting the server operator. Drop the canned denied_reason_str from the new login rate limit branches so the client no longer prints the same sentence twice. * [Server] Exempt trusted_sources from auth rate limits Addresses in security/trusted_sources bypass per-address limits, matching the existing max_users_per_address bypass in initSession. Without this, Webatrice behind local nginx (all clients as 127.0.0.1) would lock out every web user after 5 mistyped passwords, and cap the whole server at 2 registrations / 3 forgot-password requests per window. Adds Servatrice::isRateLimitExempt helper; recordFailedLogin, isLoginRateLimited, recordRegistrationAttempt and recordForgotPasswordAttempt all check it. # Conflicts: # servatrice/src/servatrice.cpp * [Server] Key login rate limit by (address, username) A successful login cleared the whole per-IP failure history, so 4 bad guesses plus 1 self-login (or guest UnknownUser login) from the same address bypassed the limiter. Failures are now bucketed per (address, lowercase username) and a success clears only its own pair. --------- Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de> |
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| .. | ||
| card_zone_algorithms | ||
| carddatabase | ||
| deck_list_model | ||
| deck_list_zones | ||
| loading_from_clipboard | ||
| movecard_tests | ||
| oracle | ||
| picture_loader_benchmark | ||
| settings | ||
| theme_migration | ||
| card_update_progress_test.cpp | ||
| clamped_arithmetic_test.cpp | ||
| CMakeLists.txt | ||
| deck_hash_performance_test.cpp | ||
| expression_test.cpp | ||
| lag_monitor_test.cpp | ||
| latency_tracker_test.cpp | ||
| loader_local_matching_test.cpp | ||
| metrics_registry_test.cpp | ||
| password_hash_test.cpp | ||
| playmat_resolver_test.cpp | ||
| rate_limiter_test.cpp | ||
| report_categories_test.cpp | ||
| server_card_counter_test.cpp | ||
| server_counter_test.cpp | ||
| server_developer_role_test.cpp | ||
| server_dump_zone_test.cpp | ||
| server_game_join_test.cpp | ||
| server_moderator_role_test.cpp | ||
| server_rate_limiter_test.cpp | ||
| single_instance_manager_test.cpp | ||
| test_age_formatting.cpp | ||
| translation_loader_test.cpp | ||
| translation_loader_test.ts | ||
| warning_categories_test.cpp | ||