Files
ruvnet--RuView/v2
Dragan Spiridonov b09625ece7 fix(auth): close the four residual findings from the adversarial review
(a) Test fixture still invented an `iss` claim.
    `bearer_auth.rs`'s `token_with_scope` added `"iss": ISSUER` to its tokens.
    Harmless today because the verifier ignores `iss` — but it is the same
    fixture-invents-reality pattern that hid the original `iss` bug for a day,
    sitting in the second-largest auth test suite. Removed, with a pointer to
    ruview-auth's regression test.

(b) Cross-process refresh race -> session revocation.
    The single-flight guarantee was per-PROCESS. Every CLI invocation is a new
    process with its own Session and mutex over one shared credential file, so
    two commands run close together inside the 60s refresh window would each
    present the same rotating refresh token — and the second is replay, which
    identity answers by revoking the whole session family. The user gets logged
    out for running two commands at once.

    Now guarded by an advisory file lock, taken NON-BLOCKING. A busy lock means
    another process is already refreshing, so we wait and re-read its result
    rather than race it (20 x 150ms, then proceed anyway — the lock is advisory,
    not a correctness barrier, and a dead holder must not wedge us). Blocking on
    the lock would have parked the async executor, which is the exact mistake
    just fixed in jwks.rs.

    Unix only. On other platforms it is a documented no-op — a lock that does
    nothing while claiming to protect is worse than none.

(c) One principal could exhaust the global ticket pool.
    The 512 cap was global with no per-caller quota, so a single authenticated
    `sensing:read` client looping on POST /api/v1/ws-ticket could hold every
    slot for 30s and 503 everyone else — denial of service by the
    lowest-privilege account the product issues. Added a 16-ticket
    per-principal cap; a page needs a handful. Test asserts a noisy user hits
    its own cap while a second user is still served and the global pool is
    never exhausted.

(d) Debug impls printed live credentials.
    `AuthState` derived Debug over the raw RUVIEW_API_TOKEN and
    `StoredCredentials` over both OAuth tokens. Not leaking today — I checked
    every call site — but this PR had already hand-written redacting Debug for
    `OAuthState` and `TicketStore` for exactly this reason, and the two types
    actually holding secrets were the ones that missed out. Both now redact.

Tests: 87 ruview-auth (2 new: lock exclusivity + non-blocking, Debug
redaction), 534 sensing-server (1 new: per-principal quota).

Co-Authored-By: Ruflo & AQE
2026-07-23 09:48:09 +02:00
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