0.2.26: security hardening from audit (P2/P3 fixes)

Address the security-auditor findings the user selected (items 2, 3, 4):

Default admin credentials (P2): remove the fixed `Ten31` default. First
boot now generates a strong random admin password (secrets.token_urlsafe),
records it 0600 at /data/.admin-password, and surfaces it once via a new
"Show Initial Admin Password" StartOS action (CLI `show-admin-password`).
The stored password is cleared when the admin is reset (CLI reset-password)
or self-changes it (change-password endpoint).

Login hardening (P2): add a per-IP in-memory sliding-window rate limiter
(10 failures / 5 min -> 429 + Retry-After) in ratelimit.py; run a dummy
argon2 verify when the user is unknown so timing can't enumerate usernames;
keep a single generic 401 for unknown-user and wrong-password.

Hardening (P3): server process now runs unprivileged -- Dockerfile adds
uid 10001 appuser; start.sh (still root) chowns the mounted /data then
drops via `setpriv` before exec'ing uvicorn. Spreadsheet imports are
size-capped via storage.read_capped (413 past MAX_UPLOAD_SIZE) in the
schedule, capital preview, and batch paths. batch_import no longer returns
raw exception text (generic per-file messages).

Verified in the packed amd64 container: PID1 uvicorn runs as uid 10001,
/data owned 10001 with 0600 secrets; generated admin password retrievable
via CLI and logs in (200); 11th bad login -> 429; admin reset clears the
stored password. Tests: test_auth_hardening.py (4). Full suite 21 passed;
frontend tsc + StartOS bundle clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

This commit is contained in:

Jonathan Kirkwood

2026-07-01 19:09:27 -05:00

co-authored by

Claude Opus 4.8

parent 025aff4fac

commit 69f12b0519

17 changed files with 324 additions and 23 deletions

									
										backend/tests/conftest.py
									
		+10
		
												View File
												
				@@ -75,3 +75,13 @@ def auth_client(client, approver):

				    )

				    assert resp.status_code == 200, resp.text

				    return client

				@pytest.fixture(autouse=True)

				def _reset_login_limiter():

				    """The login rate-limiter is a process-global; clear the TestClient's key around each test

				    so failed-login tests can't throttle unrelated ones."""

				    from ten31portal.routers.auth_router import _login_limiter

				    _login_limiter.reset("testclient")

				    yield

				    _login_limiter.reset("testclient")