The capture sanitizer redacted tokens/device ids but left the lab Host
address (10.10.0.x) in three committed UTAS fixtures, tripping
scripts/check-no-lab-addresses.sh. Replace with an RFC 5737 TEST-NET
address (192.0.2.120) per the guard's own doctrine. Host header is
plaintext metadata only (tests decode body_b64), so no test is affected.
Pre-existing leak (fixtures committed at 0b66662/eb8311a); no lab address
was introduced this session.
24 transactions across 11 connections from a retail session: login,
hub, one pack open, two squad saves, a quick-sell, with before/after
state manifests. Raw .ofcap stays gitignored at 0600; the sanitized
corpus is committed as adapter fixtures.
TWO GAPS FOUND BY AUDITING THE OUTPUT, NOT BY TRUSTING THE SANITISER.
1. `POST /ut/auth` carries `macAddress` and `deviceId`. Session tokens
were being redacted correctly and these were not. A committed fixture
is a published fixture.
2. Then, with those fixed, the audit fired AGAIN on the file about to be
committed: `GET .../phishing/trusteddevice?deviceId=...` puts the id in
the QUERY STRING. Three input surfaces carry identifiers -- headers,
JSON bodies, and query strings -- and the sanitiser knew about two.
Both fixed in the tool rather than by editing the file, with a
regression test and a mutation for the query path.
AND A THIRD ARTEFACT MIX-UP, in the mutation harness itself. It reported
the query-redaction mutation as SURVIVED while a hand-run of the same
mutation killed it. Cause: the harness pointed at a stale scratchpad copy
of the test that pre-dated the query assertion, so it was faithfully
testing the mutated tool against a test that could not detect the
mutation. That is the same class as the build guard checking the wrong
binary and cargo reusing a binary compiled from mutated source -- the
third instance today of measuring the wrong artifact. The harness now
resolves ROOT from its own location and runs the COMMITTED test; the
stale copy is deleted.
Harness committed as scripts/mutate-utas-observe.py so this is repeatable
rather than a thing that happened once in a scratch directory. 6/6 killed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
funman300