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appsec_test.go
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appsec_test.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016 Datadog, Inc.
package grpc
import (
"context"
"strings"
"testing"
"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/mocktracer"
"gopkg.in/DataDog/dd-trace-go.v1/internal/appsec"
"github.com/stretchr/testify/require"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
)
func TestAppSec(t *testing.T) {
appsec.Start()
defer appsec.Stop()
if !appsec.Enabled() {
t.Skip("appsec disabled")
}
rig, err := newRig(false)
require.NoError(t, err)
defer rig.Close()
client := rig.client
t.Run("unary", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
// Send a XSS attack in the payload along with the canary value in the RPC metadata
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log"))
res, err := client.Ping(ctx, &FixtureRequest{Name: "<script>alert('xss');</script>"})
// Check that the handler was properly called
require.NoError(t, err)
require.Equal(t, "passed", res.Message)
finished := mt.FinishedSpans()
require.Len(t, finished, 1)
// The request should have the attack attempts
event, _ := finished[0].Tag("_dd.appsec.json").(string)
require.NotNil(t, event)
require.True(t, strings.Contains(event, "crs-941-110")) // XSS attack attempt
require.True(t, strings.Contains(event, "ua0-600-55x")) // canary rule attack attempt
})
t.Run("stream", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
// Send a XSS attack in the payload along with the canary value in the RPC metadata
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log"))
stream, err := client.StreamPing(ctx)
require.NoError(t, err)
// Send a XSS attack
err = stream.Send(&FixtureRequest{Name: "<script>alert('xss');</script>"})
require.NoError(t, err)
// Check that the handler was properly called
res, err := stream.Recv()
require.Equal(t, "passed", res.Message)
require.NoError(t, err)
// Send a SQLi attack
err = stream.Send(&FixtureRequest{Name: "something UNION SELECT * from users"})
require.NoError(t, err)
// Check that the handler was properly called
res, err = stream.Recv()
require.Equal(t, "passed", res.Message)
require.NoError(t, err)
err = stream.CloseSend()
require.NoError(t, err)
// to flush the spans
stream.Recv()
finished := mt.FinishedSpans()
require.Len(t, finished, 6)
// The request should have the attack attempts
event, _ := finished[5].Tag("_dd.appsec.json").(string)
require.NotNil(t, event)
require.True(t, strings.Contains(event, "crs-941-110")) // XSS attack attempt
require.True(t, strings.Contains(event, "crs-942-100")) // SQL-injection attack attempt
require.True(t, strings.Contains(event, "ua0-600-55x")) // canary rule attack attempt
})
}
// Test that http blocking works by using custom rules/rules data
func TestBlocking(t *testing.T) {
t.Setenv("DD_APPSEC_RULES", "../../../internal/appsec/testdata/blocking.json")
appsec.Start()
defer appsec.Stop()
if !appsec.Enabled() {
t.Skip("appsec disabled")
}
rig, err := newRig(false)
require.NoError(t, err)
defer rig.Close()
client := rig.client
t.Run("unary-block", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
// Send a XSS attack in the payload along with the canary value in the RPC metadata
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log", "x-client-ip", "1.2.3.4"))
reply, err := client.Ping(ctx, &FixtureRequest{Name: "<script>alert('xss');</script>"})
require.Nil(t, reply)
require.Equal(t, codes.Aborted, status.Code(err))
finished := mt.FinishedSpans()
require.Len(t, finished, 1)
// The request should have the attack attempts
event, _ := finished[0].Tag("_dd.appsec.json").(string)
require.NotNil(t, event)
require.True(t, strings.Contains(event, "blk-001-001"))
})
t.Run("unary-no-block", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
// Send a XSS attack in the payload along with the canary value in the RPC metadata
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log", "x-client-ip", "1.2.3.5"))
reply, err := client.Ping(ctx, &FixtureRequest{Name: "<script>alert('xss');</script>"})
require.Equal(t, "passed", reply.Message)
require.Equal(t, codes.OK, status.Code(err))
})
t.Run("stream-block", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log", "x-client-ip", "1.2.3.4"))
stream, err := client.StreamPing(ctx)
require.NoError(t, err)
reply, err := stream.Recv()
require.Equal(t, codes.Aborted, status.Code(err))
require.Nil(t, reply)
finished := mt.FinishedSpans()
require.Len(t, finished, 1)
// The request should have the attack attempts
event, _ := finished[0].Tag("_dd.appsec.json").(string)
require.NotNil(t, event)
require.True(t, strings.Contains(event, "blk-001-001"))
})
t.Run("stream-no-block", func(t *testing.T) {
mt := mocktracer.Start()
defer mt.Stop()
ctx := metadata.NewOutgoingContext(context.Background(), metadata.Pairs("dd-canary", "dd-test-scanner-log", "x-client-ip", "1.2.3.5"))
stream, err := client.StreamPing(ctx)
require.NoError(t, err)
// Send a XSS attack
err = stream.Send(&FixtureRequest{Name: "<script>alert('xss');</script>"})
require.NoError(t, err)
reply, err := stream.Recv()
require.Equal(t, codes.OK, status.Code(err))
require.Equal(t, "passed", reply.Message)
err = stream.CloseSend()
require.NoError(t, err)
})
}