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Ruben Fiszel
0b62ad31c0
Privilege escalation: an app/flow/schedule/trigger execution policy's `on_behalf_of`
(which a `wm_deployers` member can set) could point at a superadmin email. The
resulting job `WM_TOKEN` then passed the email-based superadmin checks, granting
instance superadmin. `forbid_superadmin_job_token` only guarded ~15 of ~75 routes.
Fix at the token layer: a WM_TOKEN must never satisfy a superadmin gate,
regardless of whose email it runs as (sentinel OR a real superadmin).
- `ApiAuthed` gains a `job_id` field, stamped once in `AuthCache::get_opt_job_authed`
from the resolved token's job_id (correct even on cache hits).
- `require_super_admin(db, email)` -> `require_super_admin(db, &ApiAuthed)`, rejects
`authed.job_id.is_some()`. `require_super_admin_email` kept for the few internal
callers without an ApiAuthed.
- `is_super_admin_authed(db, &ApiAuthed)` for the boolean `is_super_admin_email`
authorization branches on request handlers (workspace deletion, fork drops,
dev-workspace attach/archive, object-storage SSRF exemption, custom dbname, EE GHES
+ connected repositories, ...). Migrate ~75 sites (OSS + EE).
- CUSTOM_INSTANCE_DB reads the *authenticated* job_id, not the caller-supplied
`?job_id` query param. Worker-tag check takes a precomputed job-aware `is_super_admin`
on the request path.
Execution-time on-behalf checks (scheduled/flow worker-tag, Cloud enqueue quota,
is_devops_email) are hardened in a follow-up — see
docs/followup-onbehalf-execution-privilege-hardening.md.
Regression tests: a superadmin-email WM_TOKEN is rejected on `require_super_admin`
routes, on `DELETE /workspaces/delete/{w}` (403, workspace preserved), and on the
CUSTOM_INSTANCE_DB lookup with no `?job_id` (401); real superadmin tokens still succeed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>