mirror of
https://github.com/Sea-Haven-Industries/afterhours-shift-manager.git
synced 2026-09-30 07:53:11 +00:00
Adam Moussa
43bfbf34c2
Four confirmed findings from the 2026-06-17 security sweep: - register_user let any Slack user overwrite an extension already bound to a different user (account takeover). Add a DynamoDB ConditionExpression so a write only succeeds when the extension is unclaimed or already this user's; raise ExtensionAlreadyRegistered otherwise and surface a clear Slack message. - The `rate` subcommand was routed without the is_admin flag, so any user could set $0 pay rates. Gate _handle_rate on is_admin, matching the admin-command guard. - `/oncall pick` used a plain put_item (TOCTOU): two concurrent picks both won. Use the atomic claim_open_shift conditional claim so the loser gets an "already picked up" message. - swap-accept overwrote a shift independently claimed after the swap was initiated. Add reassign_if_held_by, a conditional write that only applies the swap while the override is still the requester's (or on the weekly fallback), and notify the accepter otherwise. Add tests for the register-ownership guard and the rate admin guard. Refs: INFRA |
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| .. | ||
| holiday_router | ||
| release_notifier | ||
| ring_scheduler | ||
| roster_sync | ||
| scripts | ||
| shared | ||
| slack_bot | ||
| weekly_post | ||
| conftest.py | ||
| requirements.txt | ||