mirror of
https://github.com/GoodOlClint/PSProxmoxVE.git
synced 2026-09-03 18:55:33 +00:00
goodolclint-claude[bot]
def8dc6b67
* fix: verify checksums for downloaded ISOs/images, keep sshpass off argv ensure-base-iso.sh downloaded the PVE install ISO over plain HTTP with no checksum, caching it on the persistent /opt/pve-integration mount and booting it as the nested trust root the integration suite relies on. ensure-cloud-images.sh fetched the Ubuntu cloud image and OVA over HTTPS but never checked them either. prepare-test-environment.sh and diagnose-cluster.sh passed the nested root password to sshpass via -p, putting it in the process table. create-api-token.sh, unused anywhere in the repo, minted a privsep=0 root token and echoed the secret unmasked. - ensure-base-iso.sh now downloads from https://enterprise.proxmox.com/iso and verifies against its SHA256SUMS on every run, including a cache hit. download.proxmox.com's own TLS cert does not list download.proxmox.com in its SAN (confirmed with curl/openssl from this environment), so https to that name fails certificate validation; enterprise.proxmox.com serves the identical ISO tree over a valid cert. Verification happens before the downloaded file is moved to its canonical cache path. - ensure-cloud-images.sh verifies the cloud image and OVA against Ubuntu's published SHA256SUMS the same way, matching by upstream filename since the cloud image is cached locally under a different extension (.img upstream, .qcow2 cached — the bytes are already qcow2-formatted). - prepare-test-environment.sh and diagnose-cluster.sh now export SSHPASS and call sshpass -e, keeping the password out of argv/ps. This also fixes a latent bug: the old unquoted `sshpass -p ${ROOT_PASS}` word-split any password containing whitespace. - create-api-token.sh deleted; grep across the repo found no caller. Reviewers (codex:codex-rescue, correctness-reviewer, security-reviewer) all independently found the same blocking bug in the first pass: when a cached file failed verification and the subsequent redownload then failed, ensure-cloud-images.sh fell through to a "keep the stale copy" branch and returned that same known-bad file with exit 0 — verification could be bypassed by inducing one failed redownload. Fixed by deleting the file immediately on a failed verification, before the redownload is attempted, so the later "is there a safe stale copy" check can no longer find it. Added a test case (case 5) that reproduces this exact sequence and mutation-tested it against the unfixed code. The three reviews also flagged a real but separate bug already fixed in this same change: `trap ... RETURN` inside a function nested in another function is not scoped to that function in bash — it re-fires on the OUTER function's return, referencing an out-of-scope local. Both verify_checksum() helpers now clean up their temp file explicitly instead of via trap. Findings not acted on, judged out of scope for this fix: - SHA256SUMS-fetch failures are treated the same as a checksum mismatch (delete + fail) rather than left untouched — a transient network blip destroys a good multi-GB cached ISO. This is the safer failure direction (never silently trust unverified bytes) and was a deliberate trade-off, not a defect. - ensure-cloud-images.sh's 7-day cache window can span an upstream republish of noble/current, causing a legitimate re-verification churn (not a security issue, a cache-hit-rate one). Pre-existing cache design, unrelated to adding verification. - wait-for-pve.sh (curl -d with the password on argv) and prepare-test-environment.sh's own positional password argument (from run-integration.sh) carry the same password-on-argv pattern this issue targeted in create-api-token.sh, sshpass -p and diagnose-cluster.sh, but neither script nor run-integration.sh was named in the issue. Left untouched per scope; worth a follow-up issue. - GPG/detached-signature verification of the upstream SHA256SUMS was not added — the new checks defend against cache poisoning and transit corruption, not a compromised origin. Worth a follow-up issue. - The two new self-checks (ensure-base-iso.test.sh, ensure-cloud-images.test.sh) are not wired into .github/workflows/unit-tests.yml's shell-selfchecks job. That file is code-owned and out of scope for this change; needs an operator follow-up. Password rotation (the Testpass123! value from before it moved to a secret) is unaddressed here per the contract — flagged for the operator. Mutation-tested: broke the post-download checksum check in ensure-base-iso.sh, confirmed the affected test cases failed, restored it. Broke the sshpass -e change back to -p, confirmed the new assertions in prepare-test-environment.test.sh failed, restored it. Broke the fail-open fix in ensure-cloud-images.sh, confirmed case 5 failed, restored it. Closes #149 * fix: also verify the stale-by-age fallback copy in ensure-cloud-images.sh PR review on #166 (COMMENTED, non-blocking) found the sibling of the fail-open bug already fixed in this branch: when the cached cloud image is stale by *age* (>= 7 days) rather than failed verification, the redownload-failure fallback could hand back that file with exit 0 without ever re-verifying it in this run. A file that failed the earlier verification is already deleted by the time the fallback runs, but a stale-by-age file skips verification entirely on the way in. Fixed by verifying the stale-by-age file at the point of actual fallback use — after the redownload has failed, not proactively before it's attempted, so a copy the redownload was about to replace anyway isn't deleted along a path that would have succeeded. Added two test cases (6, 7): a still-verifying stale-by-age copy is used as a fallback; one that no longer verifies is not. Mutation-tested by reverting to the unfixed fallback and confirming case 7 fails, then restored. --------- Co-authored-by: goodolclint-claude[bot] <323206664+goodolclint-claude[bot]@users.noreply.github.com>