unom/punktfunk
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases 14 Wiki Activity

feat(web): harden login gate — throttle, scoped TLS, token-derived seal key

Browse Source 
Remediates the two web-console residuals from the 2026-07-05 posture audit:

- Brute-force throttle (loginThrottle.ts): per-IP exponential backoff
  after 5 free attempts, plus a global floor for spread-out floods, keyed
  on the socket peer IP (not spoofable X-Forwarded-For) with a size-capped
  map. The constant-time compare already stopped the timing leak; this
  bounds guess *volume* against a by-design LAN-exposed console.
- Session seal key now derives from the high-entropy mgmt token instead of
  the low-entropy login password, so a captured cookie is no longer an
  offline password oracle. Falls back to the password only when no token
  is configured (dev/local). Rotating the token now invalidates sessions.
- Replace the process-wide NODE_TLS_REJECT_UNAUTHORIZED=0 with per-request
  Bun TLS scoped to the loopback proxy hop; a non-loopback mgmt URL now
  verifies normally. Dropped the env var from the systemd unit, Steam Deck
  installer, Windows run scripts, env examples, and web README.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Enrico Bühler
2026-07-06 07:28:39 +02:00
parent ab56536842
commit bda5556d37
11 changed files with 204 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scripts/punktfunk-web.service
+3 -3
View File
@@ -3,8 +3,9 @@
# Installed by the punktfunk-web .deb to /usr/lib/systemd/user/. AUTO-WIRED — no env editing:
# it sources the host's mgmt token + the generated login password, serves HTTPS (HTTP/1.1 over TLS)
# with the host's own identity cert (~/.config/punktfunk/{cert,key}.pem), and points the /api proxy
# at the host's loopback HTTPS mgmt API (self-signed cert → NODE_TLS_REJECT_UNAUTHORIZED for the
# proxy's only outbound hop, which is loopback). Enable per user:
# at the host's loopback HTTPS mgmt API. The self-signed cert is accepted only for that loopback hop,
# scoped inside the proxy code (Bun per-request TLS) — no process-wide NODE_TLS_REJECT_UNAUTHORIZED.
# Enable per user:
# systemctl --user enable --now punktfunk-web
[Unit]
Description=punktfunk management web console
@@ -20,7 +21,6 @@ Type=simple
EnvironmentFile=%h/.config/punktfunk/mgmt-token
EnvironmentFile=-%h/.config/punktfunk/web-password
Environment=PUNKTFUNK_MGMT_URL=https://127.0.0.1:47990
Environment=NODE_TLS_REJECT_UNAUTHORIZED=0
Environment=PORT=47992
Environment=HOST=0.0.0.0
# Serve HTTPS (HTTP/1.1 over TLS) with the host's own identity cert; mark the