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KodeStar 881533baa5 Harden against host header injection and open redirect
Heimdall trusted the incoming X-Forwarded-Host header for URL generation, so
a spoofed value poisoned the page base href, asset() URLs and redirect
targets - loading assets from and redirecting to an attacker-controlled host
(CVE-2025-50578).

- TrustProxies no longer trusts X-Forwarded-Host; a forged value can no longer
  influence getHost(), url(), asset() or redirects. X-Forwarded-For/Port/Proto
  handling is unchanged.
- Trusted proxies are now configurable via the TRUSTED_PROXIES env var
  (comma-separated CIDRs/IPs, "*" to trust all), defaulting to the previous
  private ranges.
- Added an opt-in TRUSTED_HOSTS allow-list: when set, only the listed hosts are
  served and any other Host header is rejected. Unset keeps the historic
  behaviour of serving arbitrary hosts, so existing installs are unaffected.

Resolves #1451
2026-07-08 14:42:12 +01:00

79 lines
1.9 KiB
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APP_NAME=Heimdall
APP_ENV=local
APP_KEY=
APP_DEBUG=false
APP_URL=http://localhost
# Security: Host Header Injection / Open Redirect hardening (CVE-2025-50578).
# TRUSTED_PROXIES: comma-separated CIDRs/IPs of reverse proxies allowed to set
# X-Forwarded-* headers. Defaults to the private ranges below when unset. Use
# "*" to trust all proxies (only behind a trusted network boundary).
#TRUSTED_PROXIES=192.168.0.0/16,172.16.0.0/12,10.0.0.0/8,127.0.0.1
# TRUSTED_HOSTS: comma-separated hostnames Heimdall is allowed to serve. Unset
# means no restriction (default, backward compatible). Set this to your own
# domain to fully prevent host-header injection / open redirects.
#TRUSTED_HOSTS=heimdall.example.com
APP_LOCALE=en
APP_FALLBACK_LOCALE=en
APP_FAKER_LOCALE=en_US
APP_MAINTENANCE_DRIVER=file
APP_MAINTENANCE_STORE=database
BCRYPT_ROUNDS=12
LOG_CHANNEL=daily
LOG_STACK=single
DB_CONNECTION=sqlite
DB_DATABASE=app.sqlite
#DB_CONNECTION=<mysql | pgsql>
#DB_HOST=<hostname | ip>
#DB_PORT=<port number>
#DB_DATABASE=<database>
#DB_USERNAME=<user>
#DB_PASSWORD=<password>
BROADCAST_CONNECTION=log
CACHE_STORE=file
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120
SESSION_ENCRYPT=false
SESSION_PATH=/
SESSION_DOMAIN=null
QUEUE_DRIVER=sync
REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379
MAIL_MAILER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS=null
MAIL_FROM_NAME="${APP_NAME}"
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
AWS_DEFAULT_REGION=us-east-1
AWS_BUCKET=
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=mt1
MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
AUTH_ROLES_ENABLE=false
AUTH_ROLES_HEADER="remote-groups"
AUTH_ROLES_HTTP_HEADER="HTTP_REMOTE_GROUPS"
AUTH_ROLES_ADMIN="admin"
AUTH_ROLES_DELIMITER=","
ALLOW_INTERNAL_REQUESTS=false