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fix(oidc): nil check for client secret (#7115)

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This fixes a nil pointer panic when client basic auth is attempted on a client without secret in introspection.
This commit is contained in:
Tim Möhlmann 2023-12-28 15:31:41 +02:00 committed by GitHub
parent 9d5d1cf3ea
commit 45ccdcfa99
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3 changed files with 128 additions and 41 deletions
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76
internal/api/oidc/client_integration_test.go
View File

@ -61,7 +61,18 @@ func TestServer_Introspect(t *testing.T) {
require.NoError(t, err)
app, err := Tester.CreateOIDCNativeClient(CTX, redirectURI, logoutRedirectURI, project.GetId(), false)
require.NoError(t, err)
api, err := Tester.CreateAPIClient(CTX, project.GetId())
wantAudience := []string{app.GetClientId(), project.GetId()}
tests := []struct {
name string
api func(*testing.T) (apiID string, resourceServer rs.ResourceServer)
wantErr bool
}{
{
name: "client assertion",
api: func(t *testing.T) (string, rs.ResourceServer) {
api, err := Tester.CreateAPIClientJWT(CTX, project.GetId())
require.NoError(t, err)
keyResp, err := Tester.Client.Mgmt.AddAppKey(CTX, &management.AddAppKeyRequest{
ProjectId: project.GetId(),
@ -70,8 +81,60 @@ func TestServer_Introspect(t *testing.T) {
ExpirationDate: nil,
})
require.NoError(t, err)
resourceServer, err := Tester.CreateResourceServer(CTX, keyResp.GetKeyDetails())
resourceServer, err := Tester.CreateResourceServerJWTProfile(CTX, keyResp.GetKeyDetails())
require.NoError(t, err)
return api.GetClientId(), resourceServer
},
},
{
name: "client credentials",
api: func(t *testing.T) (string, rs.ResourceServer) {
api, err := Tester.CreateAPIClientBasic(CTX, project.GetId())
require.NoError(t, err)
resourceServer, err := Tester.CreateResourceServerClientCredentials(CTX, api.GetClientId(), api.GetClientSecret())
require.NoError(t, err)
return api.GetClientId(), resourceServer
},
},
{
name: "client invalid id, error",
api: func(t *testing.T) (string, rs.ResourceServer) {
api, err := Tester.CreateAPIClientBasic(CTX, project.GetId())
require.NoError(t, err)
resourceServer, err := Tester.CreateResourceServerClientCredentials(CTX, "xxxxx", api.GetClientSecret())
require.NoError(t, err)
return api.GetClientId(), resourceServer
},
wantErr: true,
},
{
name: "client invalid secret, error",
api: func(t *testing.T) (string, rs.ResourceServer) {
api, err := Tester.CreateAPIClientBasic(CTX, project.GetId())
require.NoError(t, err)
resourceServer, err := Tester.CreateResourceServerClientCredentials(CTX, api.GetClientId(), "xxxxx")
require.NoError(t, err)
return api.GetClientId(), resourceServer
},
wantErr: true,
},
{
name: "client credentials on jwt client, error",
api: func(t *testing.T) (string, rs.ResourceServer) {
api, err := Tester.CreateAPIClientJWT(CTX, project.GetId())
require.NoError(t, err)
resourceServer, err := Tester.CreateResourceServerClientCredentials(CTX, api.GetClientId(), "xxxxx")
require.NoError(t, err)
return api.GetClientId(), resourceServer
},
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
apiID, resourceServer := tt.api(t)
// wantAudience grows for every API we add to the project.
wantAudience = append(wantAudience, apiID)
scope := []string{oidc.ScopeOpenID, oidc.ScopeProfile, oidc.ScopeEmail, oidc.ScopeOfflineAccess, oidc_api.ScopeResourceOwner}
authRequestID := createAuthRequest(t, app.GetClientId(), redirectURI, scope...)
@ -96,11 +159,18 @@ func TestServer_Introspect(t *testing.T) {
// test actual introspection
introspection, err := rs.Introspect[*oidc.IntrospectionResponse](context.Background(), resourceServer, tokens.AccessToken)
if tt.wantErr {
require.Error(t, err)
return
}
require.NoError(t, err)
assertIntrospection(t, introspection,
Tester.OIDCIssuer(), app.GetClientId(),
scope, []string{app.GetClientId(), api.GetClientId(), project.GetId()},
scope, wantAudience,
tokens.Expiry, tokens.Expiry.Add(-12*time.Hour))
})
}
}
func assertUserinfo(t *testing.T, userinfo *oidc.UserInfo) {

13
internal/api/oidc/introspect.go
View File

@ -72,7 +72,7 @@ func (s *Server) Introspect(ctx context.Context, r *op.Request[op.IntrospectionR
return nil, err
}
// remaining errors shoudn't be returned to the client,
// remaining errors shouldn't be returned to the client,
// so we catch errors here, log them and return the response
// with active: false
defer func() {
@ -122,6 +122,8 @@ type introspectionClientResult struct {
err error
}
var errNoClientSecret = errors.New("client has no configured secret")
func (s *Server) introspectionClientAuth(ctx context.Context, cc *op.ClientCredentials, rc chan<- *introspectionClientResult) {
ctx, span := tracing.NewSpan(ctx)
@ -136,13 +138,16 @@ func (s *Server) introspectionClientAuth(ctx context.Context, cc *op.ClientCrede
if _, err := op.VerifyJWTAssertion(ctx, cc.ClientAssertion, verifier); err != nil {
return "", "", oidc.ErrUnauthorizedClient().WithParent(err)
}
} else {
return client.ClientID, client.ProjectID, nil
}
if client.ClientSecret != nil {
if err := crypto.CompareHash(client.ClientSecret, []byte(cc.ClientSecret), s.hashAlg); err != nil {
return "", "", oidc.ErrUnauthorizedClient().WithParent(err)
}
}
return client.ClientID, client.ProjectID, nil
}
return "", "", oidc.ErrUnauthorizedClient().WithParent(errNoClientSecret)
}()
span.EndWithError(err)

16
internal/integration/oidc.go
View File

@ -119,7 +119,7 @@ func (s *Tester) CreateProject(ctx context.Context) (*management.AddProjectRespo
})
}
func (s *Tester) CreateAPIClient(ctx context.Context, projectID string) (*management.AddAPIAppResponse, error) {
func (s *Tester) CreateAPIClientJWT(ctx context.Context, projectID string) (*management.AddAPIAppResponse, error) {
return s.Client.Mgmt.AddAPIApp(ctx, &management.AddAPIAppRequest{
ProjectId: projectID,
Name: fmt.Sprintf("api-%d", time.Now().UnixNano()),
@ -127,6 +127,14 @@ func (s *Tester) CreateAPIClient(ctx context.Context, projectID string) (*manage
})
}
func (s *Tester) CreateAPIClientBasic(ctx context.Context, projectID string) (*management.AddAPIAppResponse, error) {
return s.Client.Mgmt.AddAPIApp(ctx, &management.AddAPIAppRequest{
ProjectId: projectID,
Name: fmt.Sprintf("api-%d", time.Now().UnixNano()),
AuthMethodType: app.APIAuthMethodType_API_AUTH_METHOD_TYPE_BASIC,
})
}
const CodeVerifier = "codeVerifier"
func (s *Tester) CreateOIDCAuthRequest(ctx context.Context, clientID, loginClient, redirectURI string, scope ...string) (authRequestID string, err error) {
@ -207,7 +215,7 @@ func (c *loginRoundTripper) RoundTrip(req *http.Request) (*http.Response, error)
return c.RoundTripper.RoundTrip(req)
}
func (s *Tester) CreateResourceServer(ctx context.Context, keyFileData []byte) (rs.ResourceServer, error) {
func (s *Tester) CreateResourceServerJWTProfile(ctx context.Context, keyFileData []byte) (rs.ResourceServer, error) {
keyFile, err := client.ConfigFromKeyFileData(keyFileData)
if err != nil {
return nil, err
@ -215,6 +223,10 @@ func (s *Tester) CreateResourceServer(ctx context.Context, keyFileData []byte) (
return rs.NewResourceServerJWTProfile(ctx, s.OIDCIssuer(), keyFile.ClientID, keyFile.KeyID, []byte(keyFile.Key))
}
func (s *Tester) CreateResourceServerClientCredentials(ctx context.Context, clientID, clientSecret string) (rs.ResourceServer, error) {
return rs.NewResourceServerClientCredentials(ctx, s.OIDCIssuer(), clientID, clientSecret)
}
func GetRequest(url string, headers map[string]string) (*http.Request, error) {
req, err := http.NewRequest(http.MethodGet, url, nil)
if err != nil {