CVE-2024-5273Discovered Published
Report-Info path traversal file read
View patch bundle on GitHubFull published report
The reviewed summary below describes the scope of the fixture testing.
Report-Info path traversal file read (CVE-2024-5273)
cve.now entry. Product: report-info handler
(lab: gabriel-jenkins-app).
Eden terminates the HTTP connection to the affected product, evaluates a declarative policy and — in tier 2 — a separately compiled native Rust module under signed module authority, before any byte reaches the application. It does not patch the affected component; the vendor's fixed release remains the durable repair.
Status: Remediated (tier 1 + tier 2), live-proven 2026-11-11T16:49:02Z on the
installed eden-product-release:1.103.0 lab container.
The vulnerability
The report-info handler reads a caller-supplied path without confinement,
returning file contents via ../ traversal. The fixture (make_tplink23)
reproduces the shape: a body carrying ../ records a file-read mark and
returns the planted GABRIEL-SECRET-9f31 contents.
The Eden patch
Tier 1 — declarative policy (blunt, fail-closed): deny every request under
/report-info, ordinary report requests included — false positives measured
below.
Tier 2 — native Rust module gabriel_tplink29_v1 (surgical): refuses
bodies carrying parent-directory fragments (../, ..\); ordinary report
requests pass unchanged.
Measured comparison (fixtures9, run 2026-11-11)
| Probe | Baseline | Tier 1 | Tier 2 (module) | Backend effect |
|---|---|---|---|---|
benign report {"r":"9"} | 200 | 403 (false positive) | 200 | none |
attack: traversal {"t":"../x"} | 200 (file_read2 recorded, secret returned) | 403 | 403 | blocked at tier 2 |
Performance trace (Eden telemetry, live 2026-11-11)
Measured with Eden's built-in request telemetry (gateway.request.baseline
spans, read back through /api/v1/analytics/telemetry?signal=traces), not
client wall-clock. Latency Eden introduces per remediation arm for this case:
| Arm | n | mean | p50 | p95 | min–max |
|---|---|---|---|---|---|
| Tier 1 — declarative policy, blocked request (403) | 15 | 29 µs | 24 µs | 50 µs | 12 µs–50 µs |
| Tier 2 — native module, benign passes through (200) | 22 | 322 µs | 311 µs | 331 µs | 295 µs–570 µs |
| Tier 2 — native module, attack refused (403) | 14 | 139 µs | 126 µs | 211 µs | 115 µs–211 µs |
Eden-added latency for the tier-2 remediation: benign requests complete in 322 µs mean (p50 311 µs, p95 331 µs) in-product, module evaluation included. Honest scope: lab fixtures on one host, fresh connection per measured request, warm requests only; module reactivated shards 2/2 with a fresh signed statement per measurement; spans carry the full authority lineage (module SHA-256, operation, publication). Not the EDEN-3640 performance qualification contract.
Tested against: eden-product-release:1.103.0-single (image sha256:809293e1f0b525ac…, build target
eden_service_single, tooling revision 81a0724a…). Raw data:
module2/telemetry-ab/tplink29-telemetry.json and module2/tier1-ab/tplink29-tier1.json.
Authority lifecycle and negatives
Import 201, activation: explicit_required; publisher enroll_key, host
inventory + approve, reader inspect refused 403; tampered-statement admit
400; invalid-signature admit 403; admit prepared (not serving), activate
→ receipt serving_now, applied shards 2/2. Revoke → the identical attack
gets 503 (fail-closed); re-approve + re-activate → 403 again. All recorded
in the evidence JSON.
Honest scope
The fixture reproduces the traversal shape, not the full handler surface.
Bypass variants (encoded traversal, absolute paths, query-string delivery) are
not bypass-tested; the rule is a lab-grade partial. Module binary SHA-256
6caa6515…, source modules/gabriel_tplink29_v1.rs.
Cost record
Run window 16:49:02Z → 16:49:11Z (per-CVE ledger, marginal session cost).
Evidence appendix
- Fixture:
gabriel-2026-11-11/fixtures9.py(make_tplink23, port 18311) - Evidence:
gabriel-2026-11-11/module2/evidence/tplink29-module.json - Module source:
docs/case-studies/modules/gabriel_tplink29_v1.rs
The vulnerability
The report-info handler reads a caller-supplied path without confinement,
returning file contents via ../ traversal. The fixture (make_tplink23)
reproduces the shape: a body carrying ../ records a file-read mark and
returns the planted GABRIEL-SECRET-9f31 contents.
The Eden patch
Tier 1 — declarative policy (blunt, fail-closed): deny every request under
/report-info, ordinary report requests included — false positives measured
below.
Tier 2 — native Rust module gabriel_tplink29_v1 (surgical): refuses
bodies carrying parent-directory fragments (../, ..\); ordinary report
requests pass unchanged.
Measured comparison (fixtures9, run 2026-11-11)
| Probe | Baseline | Tier 1 | Tier 2 (module) | Backend effect |
|---|---|---|---|---|
benign report {"r":"9"} | 200 | 403 (false positive) | 200 | none |
attack: traversal {"t":"../x"} | 200 (file_read2 recorded, secret returned) | 403 | 403 | blocked at tier 2 |
Performance trace (Eden telemetry, live 2026-11-11)
Measured with Eden's built-in request telemetry (gateway.request.baseline
spans, read back through /api/v1/analytics/telemetry?signal=traces), not
client wall-clock. Latency Eden introduces per remediation arm for this case:
| Arm | n | mean | p50 | p95 | min–max |
|---|---|---|---|---|---|
| Tier 1 — declarative policy, blocked request (403) | 15 | 29 µs | 24 µs | 50 µs | 12 µs–50 µs |
| Tier 2 — native module, benign passes through (200) | 22 | 322 µs | 311 µs | 331 µs | 295 µs–570 µs |
| Tier 2 — native module, attack refused (403) | 14 | 139 µs | 126 µs | 211 µs | 115 µs–211 µs |
Authority lifecycle and negatives
Import 201, activation: explicit_required; publisher enroll_key, host
inventory + approve, reader inspect refused 403; tampered-statement admit
400; invalid-signature admit 403; admit prepared (not serving), activate
→ receipt serving_now, applied shards 2/2. Revoke → the identical attack
gets 503 (fail-closed); re-approve + re-activate → 403 again. All recorded
in the evidence JSON.
Honest scope
The fixture reproduces the traversal shape, not the full handler surface.
Bypass variants (encoded traversal, absolute paths, query-string delivery) are
not bypass-tested; the rule is a lab-grade partial. Module binary SHA-256
6caa6515…, source modules/gabriel_tplink29_v1.rs.
Cost record
Run window 16:49:02Z → 16:49:11Z (per-CVE ledger, marginal session cost).