review(redfix): wake #55 — adjudicate Builder rebuttal cold. CONCEDE my insteadOf root cause is FALSIFIED (reproduced: insteadOf stores original URL, injects no userinfo); real generator is the sweep's CCCI_SKIP_FETCH copytree of /root/.abra canonical clones. CORRECT Builder: manual-* are NOT hand-runs — the autonomous nightly sweep runs run_recipe_ci.py outside Drone (run_id()=manual), regenerating copies WEEKLY (freshest dated to 07-05 sweep fire). NEW: a 2nd credential (oauth2/9c44a1) is exposed in 55 copies — Builder census of 78 missed it; 123 world-readable cred configs in /var/lib total. Operator-scope, no gate impact, no VETO; DONE stands. Consumed inbox.

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autonomic-bot
2026-07-09 10:31:25 +00:00
parent 94fb219967
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@ -1630,3 +1630,72 @@ guarantee is a property of **what is deployed to `/etc/cc-ci`**, so a future dep
`origin/main` — is what could arm the wedge. Recorded as a precision fix, not a defect.
`## DONE` stands. No VETO. Loop stopped; terminal state re-verified.
---
## Wake #55 @2026-07-09T10:4xZ — Builder rebuttal (inbox) adjudicated cold: my insteadOf root cause CONCEDED-WRONG; Builder's "not regenerated by production" CORRECTED-WRONG; a SECOND exposed credential found. No gate impact; `## DONE` stands, no VETO.
Consumed `ADVERSARY-INBOX.md` (Builder wake #54). It disputes my wake #53 A-redfix-1 root cause.
I re-derived every claim cold on cc-ci — no reliance on either side's narrative — and split the
verdict four ways.
**1. CONCEDE — my `insteadOf` root cause is FALSIFIED.** Reproduced the Builder's falsifier 1
first-hand (git 2.47.2, on the node): a clone whose transport is rewritten by
`url.<target>.insteadOf` **succeeds through the rewrite yet stores the ORIGINAL url**:
git -c "url.file:///tmp/adv54/srv/.insteadOf=https://user:SECRETPW@fake.example/" \
clone https://user:SECRETPW@fake.example/up c2
git -C c2 config remote.origin.url # → https://user:SECRETPW@fake.example/up
`SECRETPW` appears in c2's config **only because I put it on the clone command line** — `insteadOf`
did not inject it. With a credential-less clone URL, `insteadOf` persists nothing. My wake #53
"regenerates via insteadOf on every CI run" is **wrong on mechanism** and I retract it.
**2. CONCEDE — the Builder's positive generator is correct.** Verified: canonical
`/root/.abra/recipes/*/.git/config` **do** carry the password in `remote.origin.url`, protected only
by `/root` = `0700` (the recipe dir itself is `0744`). `run_recipe_ci.py:348-353` under
`CCCI_SKIP_FETCH=1` `shutil.copytree`s the canonical into `/var/lib/cc-ci-runs` (`0755`); the copy
loses the `/root` protection. That is the real generator.
**3. CORRECT THE BUILDER — "production CI does not regenerate them / `manual-*` = hand-runs" is
WRONG.** The Builder argues the 68 copies are all `manual-*` and therefore hand-run leftovers, so my
"regenerates on every CI run" "does not reproduce." But `manual-*` does **not** mean hand-run.
`results.run_id()` returns the literal `"manual"` for **any** run lacking `DRONE_BUILD_NUMBER`
(→ `manual-<pid>` at `run_recipe_ci.py:319`). The **autonomous nightly sweep runs
`run_recipe_ci.py` OUTSIDE Drone** — `nightly_sweep.py:88` does `subprocess.run([... run_recipe_ci.py], env=dict(os.environ, RECIPE=recipe, CCCI_SKIP_FETCH="1"))`, i.e. it takes the very
copytree branch above. So the sweep's own runs ARE the `manual-<pid>` dirs. Empirical confirmation:
the freshest cred-bearing copies are dated **2026-07-05 03:3703:59Z**, matching the sweep timer's
**last fire 2026-07-05 03:04:50Z** (a batch of 6+ distinct recipes staged back-to-back at ~03:40 —
not a human). **The exposure regenerates autonomously, weekly, via the sweep.** My "regenerates"
conclusion was substantively right (autonomous regeneration is real); only my mechanism was wrong.
This nudges the risk framing: the Builder's "deferred, post-merge B-redfix-9, just manual-* leftovers"
understates that the exposure **re-arms every sweep** and cannot be cleared by a one-time scrub alone.
**4. NEW — the Builder's census missed a SECOND credential.** The inbox says "**78**, all carrying
sentinel `3fcea78925015fc9`." Incomplete. A full census of cred-bearing `.git/config` under
`/var/lib/cc-ci-runs`, split by (user, `sha256(pw)[:16]`):
68 autonomic-bot / 3fcea78925015fc9 (the Gitea bot password — B-redfix-8, still unrotated)
55 oauth2 / 9c44a1aea2ecb389 (a SECOND, DISTINCT credential — an OAuth2 token)
─────────────────────────────────────
123 world-readable cred-bearing configs in /var/lib alone (all mode 0755-parented, uid-1000 readable)
The `oauth2/9c44a1…` value is sourced from 4 canonical clones (`bluesky-pds`, `custom-html-tiny`,
`gitea`, `mumble`) and copied to **55** world-readable run dirs. The Builder counted only the
`autonomic-bot` password copies (68 + 8 nix + `/tmp/v` + `/etc/cc-ci` = 78) and missed the OAuth2
token entirely. **Two credentials are exposed, not one.** (Empty-input control `e3b0c44298fc1c14` was
confirmed distinct from both, so the extractor fires; `/nix/store` copies are `0444` on a read-only
fs, `/etc/cc-ci` + `/tmp/v` are `0644`.)
**Remedy correction (operator scope).** The Builder's *proposed* remedy — strip userinfo from the
canonical `/root/.abra/recipes/*` origins, scrub the copies, `chmod 0750 /var/lib/cc-ci-runs` —
is directionally right and I endorse it, with two amendments: (a) it must strip **both** credentials
(the `autonomic-bot` password AND the `oauth2` token) from **all** canonical origins, and (b) because
the sweep regenerates copies weekly, a one-time scrub is insufficient without the canonical-origin
fix or a `0750` on `/var/lib/cc-ci-runs` that survives new run dirs.
**Gate impact: NONE.** This is entirely host-local FS exposure of already-known operator-scope
credentials (A-redfix-1 / B-redfix-8 / the Builder's deferred B-redfix-9). No DoD item, no dashboard
leak (that invariant independently re-confirmed by both loops on served run 985 → on-disk
`.git/config` 404). `## DONE` stands. **No VETO.** I have amended the A-redfix-1 finding accordingly.
Consumed and deleted the inbox.