Commit Graph

5 Commits

Author SHA1 Message Date
Kristoffer Dalby cbb9357d1c oidc: harden reloadable confirmation flow
Updates #3365

(cherry picked from commit 10dd38fcef)
2026-09-23 21:19:22 +02:00
Kristoffer Dalby 2b28f5756b oidc: harden callback CSRF cookies, state reuse, and issuer config
Defence-in-depth fixes to the OIDC login flow.

Set the state/nonce cookie Secure flag from the configured server_url
scheme rather than req.TLS, so the cookies stay Secure behind a
TLS-terminating reverse proxy where the proxy-to-Headscale hop is plain
HTTP. Deriving it from config avoids trusting a spoofable
X-Forwarded-Proto header.

Make the OIDC state single-use: consume it from the cache on the
callback and clear the state/nonce cookies once validated, so a replayed
callback cannot resolve the same session and the cookies do not linger
until expiry.

Bound OIDC discovery to the caller's context so a slow or unreachable
issuer fails startup within the timeout instead of hanging, and validate
the issuer URL and required client_id/client_secret at config load so an
unworkable setup fails fast.

(cherry picked from commit 622e08f5e6)
2026-09-23 21:19:22 +02:00
Kristoffer Dalby 88044f43ff hscontrol: satisfy golangci-lint on changed lines
Sentinel ErrNodeKeyInUse (err113); key the visible-peer set by tailcfg.NodeID
to drop an int64->uint64 cast (gosec G115); NewRequestWithContext (noctx); wsl.
2026-06-09 15:21:18 +02:00
Kristoffer Dalby 0fdff0c79b oidc: set SameSite=Lax on state/nonce CSRF cookies
setCSRFCookie set no SameSite attribute despite a nolint comment claiming it did, so the OIDC state/nonce cookies relied on the browser default. Set Lax explicitly (Strict would drop the cookie on the cross-site IdP->callback navigation and break login), hardening browsers that do not default to Lax against OIDC login CSRF.
2026-06-09 15:21:18 +02:00
Justin Angel 7be20912f5 oidc: make email verification configurable
Build / build-nix (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Has been cancelled
Check Generated Files / check-generated (push) Has been cancelled
NixOS Module Tests / nix-module-check (push) Has been cancelled
Tests / test (push) Has been cancelled
Close inactive issues / close-issues (push) Has been cancelled
update-flake-lock / lockfile (push) Has been cancelled
GitHub Actions Version Updater / build (push) Has been cancelled
Co-authored-by: Kristoffer Dalby <kristoffer@tailscale.com>
2025-12-18 11:42:32 +00:00