security: prevent re-use of refresh token (reduce surface for any stolen token)

Security: session hardening

  Refresh token rotation with theft detection (family_id)
  - Added family_id column to auth.sessions (migration 20260507000000_session_family.sql) grouping all tokens issued from the same login into a family
  - On refresh, the new session inherits the parent's family_id
  - If a revoked token is replayed (indicates the token was stolen after rotation), the entire family is immediately invalidated and a warning is logged — forcing re-authentication on all devices

  SameSite=Strict on refresh cookie
  - Access cookie stays SameSite=Lax (needed for top-level navigation)
  - Refresh cookie upgraded to SameSite=Strict — it is only ever used for explicit POST to /api/auth/refresh, never via cross-site navigation

  Refresh token TTL: 30 days → 7 days
  - With rotation, active sessions auto-renew and effectively never expire
  - Inactive sessions expire after 7 days instead of 30, reducing the theft window
This commit is contained in:
Edouard Vanbelle
2026-05-07 09:30:09 +02:00
parent 405721c679
commit b90fa6f619
10 changed files with 135 additions and 27 deletions
@@ -0,0 +1,19 @@
-- Add token family tracking to sessions.
--
-- family_id groups all refresh tokens issued from the same original login.
-- When a rotation detects a revoked token being replayed (possible theft),
-- the entire family is invalidated — forcing re-authentication on all devices
-- that shared that login event.
--
-- Existing sessions are seeded with family_id = id (each is its own family).
ALTER TABLE auth.sessions
ADD COLUMN family_id UUID;
UPDATE auth.sessions
SET family_id = id;
ALTER TABLE auth.sessions
ALTER COLUMN family_id SET NOT NULL;
CREATE INDEX idx_sessions_family_id ON auth.sessions(family_id);
+3
View File
@@ -202,6 +202,9 @@ pub trait SessionStoragePort: Send + Sync + 'static {
/// Revokes all sessions of a user
async fn revoke_all_user_sessions(&self, user_id: Uuid) -> Result<u64, DomainError>;
/// Revokes all sessions in a token family (used when replay of a revoked token is detected)
async fn revoke_session_family(&self, family_id: Uuid) -> Result<u64, DomainError>;
}
// ============================================================================
@@ -410,13 +410,14 @@ impl AuthApplicationService {
let refresh_token = self.token_service.generate_refresh_token();
// Save session
// Save session — new login starts a new token family
let session = Session::new(
user.id(),
refresh_token.clone(),
None, // IP (can be added from the HTTP layer)
None, // User-Agent (can be added from the HTTP layer)
self.token_service.refresh_token_expiry_days(),
Uuid::new_v4(),
);
self.session_storage.create_session(session).await?;
@@ -484,8 +485,25 @@ impl AuthApplicationService {
.get_session_by_refresh_token(&dto.refresh_token)
.await?;
// Check if the session is expired or revoked
if session.is_expired() || session.is_revoked() {
// Reuse detection: a revoked token being replayed indicates the token was
// stolen after rotation. Invalidate the entire family to protect all devices.
if session.is_revoked() {
tracing::warn!(
user_id = %session.user_id(),
family_id = %session.family_id(),
"Refresh token reuse detected — revoking entire token family"
);
self.session_storage
.revoke_session_family(session.family_id())
.await?;
return Err(DomainError::new(
ErrorKind::AccessDenied,
"Auth",
"Session expired or invalid",
));
}
if session.is_expired() {
return Err(DomainError::new(
ErrorKind::AccessDenied,
"Auth",
@@ -505,21 +523,22 @@ impl AuthApplicationService {
));
}
// Revoke current session
// Revoke current session before issuing the next token in the family
self.session_storage.revoke_session(session.id()).await?;
// Generate new tokens
let access_token = self.token_service.generate_access_token(&user)?;
let new_refresh_token = self.token_service.generate_refresh_token();
// Create new session
// New session inherits the family_id so reuse of any ancestor triggers
// full-family revocation
let new_session = Session::new(
user.id(),
new_refresh_token.clone(),
None,
None,
self.token_service.refresh_token_expiry_days(),
session.family_id(),
);
self.session_storage.create_session(new_session).await?;
@@ -1245,6 +1264,7 @@ impl AuthApplicationService {
None,
None,
self.token_service.refresh_token_expiry_days(),
Uuid::new_v4(),
);
self.session_storage.create_session(session).await?;
@@ -186,6 +186,7 @@ impl DeviceAuthService {
None, // ip_address
Some(format!("device:{}", dc.client_name())), // user_agent
self.token_service.refresh_token_expiry_days(),
Uuid::new_v4(),
);
self.session_storage.create_session(session).await?;
+3 -3
View File
@@ -450,9 +450,9 @@ impl Default for AuthConfig {
// to set OXICLOUD_JWT_SECRET in production. The from_env() method
// will validate this and warn/panic if not configured.
jwt_secret: String::new(),
access_token_expiry_secs: 3600, // 1 hour
refresh_token_expiry_secs: 2592000, // 30 days
hash_memory_cost: 65536, // 64 MiB
access_token_expiry_secs: 3600, // 1 hour
refresh_token_expiry_secs: 604800, // 7 days — with rotation, active sessions auto-renew
hash_memory_cost: 65536, // 64 MiB
hash_time_cost: 3,
hash_parallelism: 2,
rate_limit: RateLimitConfig::default(),
+11
View File
@@ -11,6 +11,9 @@ pub struct Session {
user_agent: Option<String>,
created_at: DateTime<Utc>,
revoked: bool,
/// Groups all tokens issued from the same original login.
/// Replaying a revoked token from this family triggers full-family revocation.
family_id: Uuid,
}
impl Session {
@@ -20,6 +23,7 @@ impl Session {
ip_address: Option<String>,
user_agent: Option<String>,
expires_in_days: i64,
family_id: Uuid,
) -> Self {
if refresh_token.is_empty() {
panic!("Session refresh_token cannot be empty");
@@ -35,6 +39,7 @@ impl Session {
user_agent,
created_at: now,
revoked: false,
family_id,
}
}
@@ -48,6 +53,7 @@ impl Session {
user_agent: Option<String>,
created_at: DateTime<Utc>,
revoked: bool,
family_id: Uuid,
) -> Self {
Self {
id,
@@ -58,6 +64,7 @@ impl Session {
user_agent,
created_at,
revoked,
family_id,
}
}
@@ -101,4 +108,8 @@ impl Session {
pub fn revoke(&mut self) {
self.revoked = true;
}
pub fn family_id(&self) -> Uuid {
self.family_id
}
}
@@ -52,6 +52,9 @@ pub trait SessionRepository: Send + Sync + 'static {
/// Revokes all sessions for a user
async fn revoke_all_user_sessions(&self, user_id: Uuid) -> SessionRepositoryResult<u64>;
/// Revokes all sessions in a token family (theft response)
async fn revoke_session_family(&self, family_id: Uuid) -> SessionRepositoryResult<u64>;
/// Deletes expired sessions
async fn delete_expired_sessions(&self) -> SessionRepositoryResult<u64>;
}
@@ -51,10 +51,10 @@ impl SessionRepository for SessionPgRepository {
sqlx::query(
r#"
INSERT INTO auth.sessions (
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked, family_id
) VALUES (
$1, $2, $3, $4, $5, $6, $7, $8
$1, $2, $3, $4, $5, $6, $7, $8, $9
)
"#,
)
@@ -66,6 +66,7 @@ impl SessionRepository for SessionPgRepository {
.bind(session_clone.user_agent())
.bind(session_clone.created_at())
.bind(session_clone.is_revoked())
.bind(session_clone.family_id())
.execute(&mut **tx)
.await
.map_err(Self::map_sqlx_error)?;
@@ -108,9 +109,9 @@ impl SessionRepository for SessionPgRepository {
async fn get_session_by_id(&self, id: Uuid) -> SessionRepositoryResult<Session> {
let row = sqlx::query(
r#"
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked, family_id
FROM auth.sessions
WHERE id = $1
"#,
@@ -129,19 +130,21 @@ impl SessionRepository for SessionPgRepository {
row.get("user_agent"),
row.get("created_at"),
row.get("revoked"),
row.get("family_id"),
))
}
/// Gets a session by refresh token
/// Gets a session by refresh token — returns revoked sessions too so the
/// application layer can distinguish "not found" from "replayed revoked token".
async fn get_session_by_refresh_token(
&self,
refresh_token: &str,
) -> SessionRepositoryResult<Session> {
let row = sqlx::query(
r#"
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked, family_id
FROM auth.sessions
WHERE refresh_token = $1
"#,
@@ -160,6 +163,7 @@ impl SessionRepository for SessionPgRepository {
row.get("user_agent"),
row.get("created_at"),
row.get("revoked"),
row.get("family_id"),
))
}
@@ -170,9 +174,9 @@ impl SessionRepository for SessionPgRepository {
) -> SessionRepositoryResult<Vec<Session>> {
let rows = sqlx::query(
r#"
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked
SELECT
id, user_id, refresh_token, expires_at,
ip_address, user_agent, created_at, revoked, family_id
FROM auth.sessions
WHERE user_id = $1
ORDER BY created_at DESC
@@ -195,6 +199,7 @@ impl SessionRepository for SessionPgRepository {
row.get("user_agent"),
row.get("created_at"),
row.get("revoked"),
row.get("family_id"),
)
})
.collect();
@@ -270,6 +275,31 @@ impl SessionRepository for SessionPgRepository {
.await
}
/// Revokes all sessions in a token family (theft response)
async fn revoke_session_family(&self, family_id: Uuid) -> SessionRepositoryResult<u64> {
let result = sqlx::query(
r#"
UPDATE auth.sessions
SET revoked = true
WHERE family_id = $1 AND revoked = false
"#,
)
.bind(family_id)
.execute(&*self.pool)
.await
.map_err(Self::map_sqlx_error)?;
let affected = result.rows_affected();
if affected > 0 {
tracing::warn!(
"Token reuse detected: revoked {} session(s) in family {}",
affected,
family_id
);
}
Ok(affected)
}
/// Deletes expired sessions
async fn delete_expired_sessions(&self) -> SessionRepositoryResult<u64> {
let now = Utc::now();
@@ -317,4 +347,10 @@ impl SessionStoragePort for SessionPgRepository {
.await
.map_err(DomainError::from)
}
async fn revoke_session_family(&self, family_id: Uuid) -> Result<u64, DomainError> {
SessionRepository::revoke_session_family(self, family_id)
.await
.map_err(DomainError::from)
}
}
+9 -5
View File
@@ -43,7 +43,7 @@ fn cookie_secure() -> bool {
let secure = v == "true" || v == "1";
if !secure {
tracing::warn!(
"OXICLOUD_COOKIE_SECURE is explicitly disabled — \
"⚠️ SECURITY: OXICLOUD_COOKIE_SECURE is explicitly disabled — \
cookies will be sent over plain HTTP. \
Do NOT use this in production."
);
@@ -55,7 +55,7 @@ fn cookie_secure() -> bool {
Ok(url) if url.starts_with("https") => true,
Ok(url) if url.starts_with("http://") => {
tracing::info!(
"OXICLOUD_BASE_URL is HTTP — cookie Secure flag is OFF. \
"⚠️ SECURITY: OXICLOUD_BASE_URL is HTTP — cookie Secure flag is OFF. \
Set OXICLOUD_COOKIE_SECURE=true to override if your proxy terminates TLS."
);
false
@@ -63,7 +63,7 @@ fn cookie_secure() -> bool {
_ => {
// Default to false for compatibility with HTTP deployments
tracing::info!(
"OXICLOUD_BASE_URL not set — defaulting to non-secure cookies \
"⚠️ SECURITY: OXICLOUD_BASE_URL not set — defaulting to non-secure cookies \
for HTTP compatibility. Set OXICLOUD_COOKIE_SECURE=true for HTTPS deployments."
);
false
@@ -72,9 +72,11 @@ fn cookie_secure() -> bool {
}
/// Build a `Set-Cookie` header value.
fn build_cookie(name: &str, value: &str, path: &str, max_age_secs: i64) -> String {
fn build_cookie(name: &str, value: &str, path: &str, max_age_secs: i64, same_site: &str) -> String {
let secure = if cookie_secure() { "; Secure" } else { "" };
format!("{name}={value}; HttpOnly; SameSite=Lax; Path={path}; Max-Age={max_age_secs}{secure}",)
format!(
"{name}={value}; HttpOnly; SameSite={same_site}; Path={path}; Max-Age={max_age_secs}{secure}",
)
}
/// Append `Set-Cookie` headers for both access and refresh tokens.
@@ -96,6 +98,7 @@ pub fn append_auth_cookies(
access_token,
"/",
access_expiry_secs,
"Lax", // Lax: cookie is sent on top-level navigations (links from other sites)
)) {
headers.append(SET_COOKIE, val);
}
@@ -104,6 +107,7 @@ pub fn append_auth_cookies(
refresh_token,
"/api/auth",
refresh_expiry_secs,
"Strict", // Strict: refresh endpoint is never reached via cross-site navigation
)) {
headers.append(SET_COOKIE, val);
}
+11
View File
@@ -468,6 +468,17 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
HeaderValue::from_static("camera=(), microphone=(), geolocation=()"),
));
// Warn once at startup if auth cookies are not Secure.
// HttpOnly + SameSite protection is nullified over plain HTTP because tokens
// travel in cleartext and can be intercepted by a network observer.
if !crate::interfaces::api::cookie_auth::is_cookie_secure() {
tracing::warn!(
"⚠️ SECURITY: auth cookies are NOT marked Secure. \
Tokens will be transmitted in plaintext over HTTP. \
Set OXICLOUD_COOKIE_SECURE=true for any HTTPS deployment."
);
}
// Start server — tuned socket for low-latency responses
let addr = SocketAddr::from(([0, 0, 0, 0], config.server_port));
tracing::info!("Starting OxiCloud server on http://{}", addr);