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open-vault/builtin/logical/ssh/backend_test.go
Clint 0db43e697b Add signed key constraints to SSH CA [continued] (#6030) 
* Adds the ability to enforce particular ssh key types and minimum key
lengths when using Signed SSH Certificates via the SSH Secret Engine.
2019-02-11 13:03:26 -05:00

1192 lines
37 KiB
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package ssh
import (
"context"
"fmt"
"os/user"
"reflect"
"strconv"
"testing"
"time"
"golang.org/x/crypto/ssh"
"encoding/base64"
"encoding/json"
"errors"
"strings"
"github.com/hashicorp/vault/api"
"github.com/hashicorp/vault/logical"
logicaltest "github.com/hashicorp/vault/logical/testing"
"github.com/hashicorp/vault/vault"
"github.com/mitchellh/mapstructure"
)
// Before the following tests are run, a username going by the name 'vaultssh' has
// to be created and its ~/.ssh/authorized_keys file should contain the below key.
//
// ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9i+hFxZHGo6KblVme4zrAcJstR6I0PTJozW286X4WyvPnkMYDQ5mnhEYC7UWCvjoTWbPEXPX7NjhRtwQTGD67bV+lrxgfyzK1JZbUXK4PwgKJvQD+XyyWYMzDgGSQY61KUSqCxymSm/9NZkPU3ElaQ9xQuTzPpztM4ROfb8f2Yv6/ZESZsTo0MTAkp8Pcy+WkioI/uJ1H7zqs0EA4OMY4aDJRu0UtP4rTVeYNEAuRXdX+eH4aW3KMvhzpFTjMbaJHJXlEeUm2SaX5TNQyTOvghCeQILfYIL/Ca2ij8iwCmulwdV6eQGfd4VDu40PvSnmfoaE38o6HaPnX0kUcnKiT
const (
testIP = "127.0.0.1"
testUserName = "vaultssh"
testAdminUser = "vaultssh"
testOTPKeyType = "otp"
testDynamicKeyType = "dynamic"
testCIDRList = "127.0.0.1/32"
testDynamicRoleName = "testDynamicRoleName"
testOTPRoleName = "testOTPRoleName"
testKeyName = "testKeyName"
testSharedPrivateKey = `
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
`
// Public half of `privateKey`, identical to how it would be fed in from a file
publicKey = `ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDArgK0ilRRfk8E7HIsjz5l3BuxmwpDd8DHRCVfOhbZ4gOSVxjEOOqBwWGjygdboBIZwFXmwDlU6sWX0hBJAgpQz0Cjvbjxtq/NjkvATrYPgnrXUhTaEn2eQO0PsqRNSFH46SK/oJfTp0q8/WgojxWJ2L7FUV8PO8uIk49DzqAqPV7WXU63vFsjx+3WQOX/ILeQvHCvaqs3dWjjzEoDudRWCOdUqcHEOshV9azIzPrXlQVzRV3QAKl6u7pC+/Secorpwt6IHpMKoVPGiR0tMMuNOVH8zrAKzIxPGfy2WmNDpJopbXMTvSOGAqNcp49O4SKOQl9Fzfq2HEevJamKLrMB dummy@example.com
`
publicKey2 = `AAAAB3NzaC1yc2EAAAADAQABAAABAQDArgK0ilRRfk8E7HIsjz5l3BuxmwpDd8DHRCVfOhbZ4gOSVxjEOOqBwWGjygdboBIZwFXmwDlU6sWX0hBJAgpQz0Cjvbjxtq/NjkvATrYPgnrXUhTaEn2eQO0PsqRNSFH46SK/oJfTp0q8/WgojxWJ2L7FUV8PO8uIk49DzqAqPV7WXU63vFsjx+3WQOX/ILeQvHCvaqs3dWjjzEoDudRWCOdUqcHEOshV9azIzPrXlQVzRV3QAKl6u7pC+/Secorpwt6IHpMKoVPGiR0tMMuNOVH8zrAKzIxPGfy2WmNDpJopbXMTvSOGAqNcp49O4SKOQl9Fzfq2HEevJamKLrMB
`
publicKey4096 = `ssh-rsa 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 dummy@example.com`
privateKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
`
)
func TestBackend_allowed_users(t *testing.T) {
config := logical.TestBackendConfig()
config.StorageView = &logical.InmemStorage{}
b, err := Backend(config)
if err != nil {
t.Fatal(err)
}
err = b.Setup(context.Background(), config)
if err != nil {
t.Fatal(err)
}
roleData := map[string]interface{}{
"key_type": "otp",
"default_user": "ubuntu",
"cidr_list": "52.207.235.245/16",
"allowed_users": "test",
}
roleReq := &logical.Request{
Operation: logical.UpdateOperation,
Path: "roles/role1",
Storage: config.StorageView,
Data: roleData,
}
resp, err := b.HandleRequest(context.Background(), roleReq)
if err != nil || (resp != nil && resp.IsError()) || resp != nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
credsData := map[string]interface{}{
"ip": "52.207.235.245",
"username": "ubuntu",
}
credsReq := &logical.Request{
Operation: logical.UpdateOperation,
Storage: config.StorageView,
Path: "creds/role1",
Data: credsData,
}
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || (resp != nil && resp.IsError()) || resp == nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
if resp.Data["key"] == "" ||
resp.Data["key_type"] != "otp" ||
resp.Data["ip"] != "52.207.235.245" ||
resp.Data["username"] != "ubuntu" {
t.Fatalf("failed to create credential: resp:%#v", resp)
}
credsData["username"] = "test"
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || (resp != nil && resp.IsError()) || resp == nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
if resp.Data["key"] == "" ||
resp.Data["key_type"] != "otp" ||
resp.Data["ip"] != "52.207.235.245" ||
resp.Data["username"] != "test" {
t.Fatalf("failed to create credential: resp:%#v", resp)
}
credsData["username"] = "random"
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || resp == nil || (resp != nil && !resp.IsError()) {
t.Fatalf("expected failure: resp:%#v err:%s", resp, err)
}
delete(roleData, "allowed_users")
resp, err = b.HandleRequest(context.Background(), roleReq)
if err != nil || (resp != nil && resp.IsError()) || resp != nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
credsData["username"] = "ubuntu"
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || (resp != nil && resp.IsError()) || resp == nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
if resp.Data["key"] == "" ||
resp.Data["key_type"] != "otp" ||
resp.Data["ip"] != "52.207.235.245" ||
resp.Data["username"] != "ubuntu" {
t.Fatalf("failed to create credential: resp:%#v", resp)
}
credsData["username"] = "test"
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || resp == nil || (resp != nil && !resp.IsError()) {
t.Fatalf("expected failure: resp:%#v err:%s", resp, err)
}
roleData["allowed_users"] = "*"
resp, err = b.HandleRequest(context.Background(), roleReq)
if err != nil || (resp != nil && resp.IsError()) || resp != nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
resp, err = b.HandleRequest(context.Background(), credsReq)
if err != nil || (resp != nil && resp.IsError()) || resp == nil {
t.Fatalf("failed to create role: resp:%#v err:%s", resp, err)
}
if resp.Data["key"] == "" ||
resp.Data["key_type"] != "otp" ||
resp.Data["ip"] != "52.207.235.245" ||
resp.Data["username"] != "test" {
t.Fatalf("failed to create credential: resp:%#v", resp)
}
}
func testingFactory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error) {
_, err := vault.StartSSHHostTestServer()
if err != nil {
panic(fmt.Sprintf("error starting mock server:%s", err))
}
defaultLeaseTTLVal := 2 * time.Minute
maxLeaseTTLVal := 10 * time.Minute
return Factory(context.Background(), &logical.BackendConfig{
Logger: nil,
StorageView: &logical.InmemStorage{},
System: &logical.StaticSystemView{
DefaultLeaseTTLVal: defaultLeaseTTLVal,
MaxLeaseTTLVal: maxLeaseTTLVal,
},
})
}
func TestSSHBackend_Lookup(t *testing.T) {
testOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
testDynamicRoleData := map[string]interface{}{
"key_type": testDynamicKeyType,
"key": testKeyName,
"admin_user": testAdminUser,
"default_user": testAdminUser,
"cidr_list": testCIDRList,
}
data := map[string]interface{}{
"ip": testIP,
}
resp1 := []string(nil)
resp2 := []string{testOTPRoleName}
resp3 := []string{testDynamicRoleName, testOTPRoleName}
resp4 := []string{testDynamicRoleName}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testLookupRead(t, data, resp1),
testRoleWrite(t, testOTPRoleName, testOTPRoleData),
testLookupRead(t, data, resp2),
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testRoleWrite(t, testDynamicRoleName, testDynamicRoleData),
testLookupRead(t, data, resp3),
testRoleDelete(t, testOTPRoleName),
testLookupRead(t, data, resp4),
testRoleDelete(t, testDynamicRoleName),
testLookupRead(t, data, resp1),
},
})
}
func TestSSHBackend_RoleList(t *testing.T) {
testOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
resp1 := map[string]interface{}{}
resp2 := map[string]interface{}{
"keys": []string{testOTPRoleName},
"key_info": map[string]interface{}{
testOTPRoleName: map[string]interface{}{
"key_type": testOTPKeyType,
},
},
}
logicaltest.Test(t, logicaltest.TestCase{
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testRoleList(t, resp1),
testRoleWrite(t, testOTPRoleName, testOTPRoleData),
testRoleList(t, resp2),
},
})
}
func TestSSHBackend_DynamicKeyCreate(t *testing.T) {
testDynamicRoleData := map[string]interface{}{
"key_type": testDynamicKeyType,
"key": testKeyName,
"admin_user": testAdminUser,
"default_user": testAdminUser,
"cidr_list": testCIDRList,
}
data := map[string]interface{}{
"username": testUserName,
"ip": testIP,
}
logicaltest.Test(t, logicaltest.TestCase{
PreCheck: testAccUserPrecheckFunc(t),
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testRoleWrite(t, testDynamicRoleName, testDynamicRoleData),
testCredsWrite(t, testDynamicRoleName, data, false),
},
})
}
func TestSSHBackend_OTPRoleCrud(t *testing.T) {
testOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
respOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"port": 22,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testRoleWrite(t, testOTPRoleName, testOTPRoleData),
testRoleRead(t, testOTPRoleName, respOTPRoleData),
testRoleDelete(t, testOTPRoleName),
testRoleRead(t, testOTPRoleName, nil),
},
})
}
func TestSSHBackend_DynamicRoleCrud(t *testing.T) {
testDynamicRoleData := map[string]interface{}{
"key_type": testDynamicKeyType,
"key": testKeyName,
"admin_user": testAdminUser,
"default_user": testAdminUser,
"cidr_list": testCIDRList,
}
respDynamicRoleData := map[string]interface{}{
"cidr_list": testCIDRList,
"port": 22,
"install_script": DefaultPublicKeyInstallScript,
"key_bits": 1024,
"key": testKeyName,
"admin_user": testUserName,
"default_user": testUserName,
"key_type": testDynamicKeyType,
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testRoleWrite(t, testDynamicRoleName, testDynamicRoleData),
testRoleRead(t, testDynamicRoleName, respDynamicRoleData),
testRoleDelete(t, testDynamicRoleName),
testRoleRead(t, testDynamicRoleName, nil),
},
})
}
func TestSSHBackend_NamedKeysCrud(t *testing.T) {
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testNamedKeysDelete(t),
},
})
}
func TestSSHBackend_OTPCreate(t *testing.T) {
testOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
data := map[string]interface{}{
"username": testUserName,
"ip": testIP,
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testRoleWrite(t, testOTPRoleName, testOTPRoleData),
testCredsWrite(t, testOTPRoleName, data, false),
},
})
}
func TestSSHBackend_VerifyEcho(t *testing.T) {
verifyData := map[string]interface{}{
"otp": api.VerifyEchoRequest,
}
expectedData := map[string]interface{}{
"message": api.VerifyEchoResponse,
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testVerifyWrite(t, verifyData, expectedData),
},
})
}
func TestSSHBackend_ConfigZeroAddressCRUD(t *testing.T) {
testOTPRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
"cidr_list": testCIDRList,
}
testDynamicRoleData := map[string]interface{}{
"key_type": testDynamicKeyType,
"key": testKeyName,
"admin_user": testAdminUser,
"default_user": testAdminUser,
"cidr_list": testCIDRList,
}
req1 := map[string]interface{}{
"roles": testOTPRoleName,
}
resp1 := map[string]interface{}{
"roles": []string{testOTPRoleName},
}
req2 := map[string]interface{}{
"roles": fmt.Sprintf("%s,%s", testOTPRoleName, testDynamicRoleName),
}
resp2 := map[string]interface{}{
"roles": []string{testOTPRoleName, testDynamicRoleName},
}
resp3 := map[string]interface{}{
"roles": []string{},
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testRoleWrite(t, testOTPRoleName, testOTPRoleData),
testConfigZeroAddressWrite(t, req1),
testConfigZeroAddressRead(t, resp1),
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testRoleWrite(t, testDynamicRoleName, testDynamicRoleData),
testConfigZeroAddressWrite(t, req2),
testConfigZeroAddressRead(t, resp2),
testRoleDelete(t, testDynamicRoleName),
testConfigZeroAddressRead(t, resp1),
testRoleDelete(t, testOTPRoleName),
testConfigZeroAddressRead(t, resp3),
testConfigZeroAddressDelete(t),
},
})
}
func TestSSHBackend_CredsForZeroAddressRoles_otp(t *testing.T) {
otpRoleData := map[string]interface{}{
"key_type": testOTPKeyType,
"default_user": testUserName,
}
data := map[string]interface{}{
"username": testUserName,
"ip": testIP,
}
req1 := map[string]interface{}{
"roles": testOTPRoleName,
}
logicaltest.Test(t, logicaltest.TestCase{
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testRoleWrite(t, testOTPRoleName, otpRoleData),
testCredsWrite(t, testOTPRoleName, data, true),
testConfigZeroAddressWrite(t, req1),
testCredsWrite(t, testOTPRoleName, data, false),
testConfigZeroAddressDelete(t),
testCredsWrite(t, testOTPRoleName, data, true),
},
})
}
func TestSSHBackend_CredsForZeroAddressRoles_dynamic(t *testing.T) {
dynamicRoleData := map[string]interface{}{
"key_type": testDynamicKeyType,
"key": testKeyName,
"admin_user": testAdminUser,
"default_user": testAdminUser,
}
data := map[string]interface{}{
"username": testUserName,
"ip": testIP,
}
req2 := map[string]interface{}{
"roles": testDynamicRoleName,
}
logicaltest.Test(t, logicaltest.TestCase{
PreCheck: testAccUserPrecheckFunc(t),
AcceptanceTest: true,
LogicalFactory: testingFactory,
Steps: []logicaltest.TestStep{
testNamedKeysWrite(t, testKeyName, testSharedPrivateKey),
testRoleWrite(t, testDynamicRoleName, dynamicRoleData),
testCredsWrite(t, testDynamicRoleName, data, true),
testConfigZeroAddressWrite(t, req2),
testCredsWrite(t, testDynamicRoleName, data, false),
testConfigZeroAddressDelete(t),
testCredsWrite(t, testDynamicRoleName, data, true),
},
})
}
func TestBackend_AbleToRetrievePublicKey(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
logicaltest.TestStep{
Operation: logical.ReadOperation,
Path: "public_key",
Unauthenticated: true,
Check: func(resp *logical.Response) error {
key := string(resp.Data["http_raw_body"].([]byte))
if key != publicKey {
return fmt.Errorf("public_key incorrect. Expected %v, actual %v", publicKey, key)
}
return nil
},
},
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_AbleToAutoGenerateSigningKeys(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "config/ca",
},
logicaltest.TestStep{
Operation: logical.ReadOperation,
Path: "public_key",
Unauthenticated: true,
Check: func(resp *logical.Response) error {
key := string(resp.Data["http_raw_body"].([]byte))
if key == "" {
return fmt.Errorf("public_key empty. Expected not empty, actual %s", key)
}
return nil
},
},
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_ValidPrincipalsValidatedForHostCertificates(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
createRoleStep("testing", map[string]interface{}{
"key_type": "ca",
"allow_host_certificates": true,
"allowed_domains": "example.com,example.org",
"allow_subdomains": true,
"default_critical_options": map[string]interface{}{
"option": "value",
},
"default_extensions": map[string]interface{}{
"extension": "extended",
},
}),
signCertificateStep("testing", "vault-root-22608f5ef173aabf700797cb95c5641e792698ec6380e8e1eb55523e39aa5e51", ssh.HostCert, []string{"dummy.example.org", "second.example.com"}, map[string]string{
"option": "value",
}, map[string]string{
"extension": "extended",
},
2*time.Hour, map[string]interface{}{
"public_key": publicKey2,
"ttl": "2h",
"cert_type": "host",
"valid_principals": "dummy.example.org,second.example.com",
}),
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_OptionsOverrideDefaults(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
createRoleStep("testing", map[string]interface{}{
"key_type": "ca",
"allowed_users": "tuber",
"default_user": "tuber",
"allow_user_certificates": true,
"allowed_critical_options": "option,secondary",
"allowed_extensions": "extension,additional",
"default_critical_options": map[string]interface{}{
"option": "value",
},
"default_extensions": map[string]interface{}{
"extension": "extended",
},
}),
signCertificateStep("testing", "vault-root-22608f5ef173aabf700797cb95c5641e792698ec6380e8e1eb55523e39aa5e51", ssh.UserCert, []string{"tuber"}, map[string]string{
"secondary": "value",
}, map[string]string{
"additional": "value",
}, 2*time.Hour, map[string]interface{}{
"public_key": publicKey2,
"ttl": "2h",
"critical_options": map[string]interface{}{
"secondary": "value",
},
"extensions": map[string]interface{}{
"additional": "value",
},
}),
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_AllowedUserKeyLengths(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
createRoleStep("weakkey", map[string]interface{}{
"key_type": "ca",
"allow_user_certificates": true,
"allowed_user_key_lengths": map[string]interface{}{
"rsa": json.Number(strconv.FormatInt(4096, 10)),
},
}),
logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "sign/weakkey",
Data: map[string]interface{}{
"public_key": publicKey,
},
ErrorOk: true,
Check: func(resp *logical.Response) error {
if resp.Data["error"] != "public_key failed to meet the key requirements: key is of an invalid size: 2048" {
return errors.New("a smaller key (2048) was allowed, when the minimum was set for 4096")
}
return nil
},
},
createRoleStep("stdkey", map[string]interface{}{
"key_type": "ca",
"allow_user_certificates": true,
"allowed_user_key_lengths": map[string]interface{}{
"rsa": json.Number(strconv.FormatInt(2048, 10)),
},
}),
// Pass with 2048 key
logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "sign/stdkey",
Data: map[string]interface{}{
"public_key": publicKey,
},
},
// Fail with 4096 key
logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "sign/stdkey",
Data: map[string]interface{}{
"public_key": publicKey4096,
},
ErrorOk: true,
Check: func(resp *logical.Response) error {
if resp.Data["error"] != "public_key failed to meet the key requirements: key is of an invalid size: 4096" {
return errors.New("a larger key (4096) was allowed, when the size was set for 2048")
}
return nil
},
},
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_CustomKeyIDFormat(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
createRoleStep("customrole", map[string]interface{}{
"key_type": "ca",
"key_id_format": "{{role_name}}-{{token_display_name}}-{{public_key_hash}}",
"allowed_users": "tuber",
"default_user": "tuber",
"allow_user_certificates": true,
"allowed_critical_options": "option,secondary",
"allowed_extensions": "extension,additional",
"default_critical_options": map[string]interface{}{
"option": "value",
},
"default_extensions": map[string]interface{}{
"extension": "extended",
},
}),
signCertificateStep("customrole", "customrole-root-22608f5ef173aabf700797cb95c5641e792698ec6380e8e1eb55523e39aa5e51", ssh.UserCert, []string{"tuber"}, map[string]string{
"secondary": "value",
}, map[string]string{
"additional": "value",
}, 2*time.Hour, map[string]interface{}{
"public_key": publicKey2,
"ttl": "2h",
"critical_options": map[string]interface{}{
"secondary": "value",
},
"extensions": map[string]interface{}{
"additional": "value",
},
}),
},
}
logicaltest.Test(t, testCase)
}
func TestBackend_DisallowUserProvidedKeyIDs(t *testing.T) {
config := logical.TestBackendConfig()
b, err := Factory(context.Background(), config)
if err != nil {
t.Fatalf("Cannot create backend: %s", err)
}
testCase := logicaltest.TestCase{
LogicalBackend: b,
Steps: []logicaltest.TestStep{
configCaStep(),
createRoleStep("testing", map[string]interface{}{
"key_type": "ca",
"allow_user_key_ids": false,
"allow_user_certificates": true,
}),
logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "sign/testing",
Data: map[string]interface{}{
"public_key": publicKey2,
"key_id": "override",
},
ErrorOk: true,
Check: func(resp *logical.Response) error {
if resp.Data["error"] != "setting key_id is not allowed by role" {
return errors.New("custom user key id was allowed even when 'allow_user_key_ids' is false")
}
return nil
},
},
},
}
logicaltest.Test(t, testCase)
}
func configCaStep() logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "config/ca",
Data: map[string]interface{}{
"public_key": publicKey,
"private_key": privateKey,
},
}
}
func createRoleStep(name string, parameters map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.CreateOperation,
Path: "roles/" + name,
Data: parameters,
}
}
func signCertificateStep(
role, keyID string, certType int, validPrincipals []string,
criticalOptionPermissions, extensionPermissions map[string]string,
ttl time.Duration,
requestParameters map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "sign/" + role,
Data: requestParameters,
Check: func(resp *logical.Response) error {
serialNumber := resp.Data["serial_number"].(string)
if serialNumber == "" {
return errors.New("no serial number in response")
}
signedKey := strings.TrimSpace(resp.Data["signed_key"].(string))
if signedKey == "" {
return errors.New("no signed key in response")
}
key, _ := base64.StdEncoding.DecodeString(strings.Split(signedKey, " ")[1])
parsedKey, err := ssh.ParsePublicKey(key)
if err != nil {
return err
}
return validateSSHCertificate(parsedKey.(*ssh.Certificate), keyID, certType, validPrincipals, criticalOptionPermissions, extensionPermissions, ttl)
},
}
}
func validateSSHCertificate(cert *ssh.Certificate, keyID string, certType int, validPrincipals []string, criticalOptionPermissions, extensionPermissions map[string]string,
ttl time.Duration) error {
if cert.KeyId != keyID {
return fmt.Errorf("incorrect KeyId: %v, wanted %v", cert.KeyId, keyID)
}
if cert.CertType != uint32(certType) {
return fmt.Errorf("incorrect CertType: %v", cert.CertType)
}
if time.Unix(int64(cert.ValidAfter), 0).After(time.Now()) {
return fmt.Errorf("incorrect ValidAfter: %v", cert.ValidAfter)
}
if time.Unix(int64(cert.ValidBefore), 0).Before(time.Now()) {
return fmt.Errorf("incorrect ValidBefore: %v", cert.ValidBefore)
}
actualTTL := time.Unix(int64(cert.ValidBefore), 0).Add(-30 * time.Second).Sub(time.Unix(int64(cert.ValidAfter), 0))
if actualTTL != ttl {
return fmt.Errorf("incorrect ttl: expected: %v, actualL %v", ttl, actualTTL)
}
if !reflect.DeepEqual(cert.ValidPrincipals, validPrincipals) {
return fmt.Errorf("incorrect ValidPrincipals: expected: %#v actual: %#v", validPrincipals, cert.ValidPrincipals)
}
publicSigningKey, err := getSigningPublicKey()
if err != nil {
return err
}
if !reflect.DeepEqual(cert.SignatureKey, publicSigningKey) {
return fmt.Errorf("incorrect SignatureKey: %v", cert.SignatureKey)
}
if cert.Signature == nil {
return fmt.Errorf("incorrect Signature: %v", cert.Signature)
}
if !reflect.DeepEqual(cert.Permissions.Extensions, extensionPermissions) {
return fmt.Errorf("incorrect Permissions.Extensions: Expected: %v, Actual: %v", extensionPermissions, cert.Permissions.Extensions)
}
if !reflect.DeepEqual(cert.Permissions.CriticalOptions, criticalOptionPermissions) {
return fmt.Errorf("incorrect Permissions.CriticalOptions: %v", cert.Permissions.CriticalOptions)
}
return nil
}
func getSigningPublicKey() (ssh.PublicKey, error) {
key, err := base64.StdEncoding.DecodeString(strings.Split(publicKey, " ")[1])
if err != nil {
return nil, err
}
parsedKey, err := ssh.ParsePublicKey(key)
if err != nil {
return nil, err
}
return parsedKey, nil
}
func testConfigZeroAddressDelete(t *testing.T) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.DeleteOperation,
Path: "config/zeroaddress",
}
}
func testConfigZeroAddressWrite(t *testing.T, data map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "config/zeroaddress",
Data: data,
}
}
func testConfigZeroAddressRead(t *testing.T, expected map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.ReadOperation,
Path: "config/zeroaddress",
Check: func(resp *logical.Response) error {
var d zeroAddressRoles
if err := mapstructure.Decode(resp.Data, &d); err != nil {
return err
}
var ex zeroAddressRoles
if err := mapstructure.Decode(expected, &ex); err != nil {
return err
}
if !reflect.DeepEqual(d, ex) {
return fmt.Errorf("Response mismatch:\nActual:%#v\nExpected:%#v", d, ex)
}
return nil
},
}
}
func testVerifyWrite(t *testing.T, data map[string]interface{}, expected map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: fmt.Sprintf("verify"),
Data: data,
Check: func(resp *logical.Response) error {
var ac api.SSHVerifyResponse
if err := mapstructure.Decode(resp.Data, &ac); err != nil {
return err
}
var ex api.SSHVerifyResponse
if err := mapstructure.Decode(expected, &ex); err != nil {
return err
}
if !reflect.DeepEqual(ac, ex) {
return fmt.Errorf("invalid response")
}
return nil
},
}
}
func testNamedKeysWrite(t *testing.T, name, key string) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: fmt.Sprintf("keys/%s", name),
Data: map[string]interface{}{
"key": key,
},
}
}
func testNamedKeysDelete(t *testing.T) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.DeleteOperation,
Path: fmt.Sprintf("keys/%s", testKeyName),
}
}
func testLookupRead(t *testing.T, data map[string]interface{}, expected []string) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "lookup",
Data: data,
Check: func(resp *logical.Response) error {
if resp.Data == nil || resp.Data["roles"] == nil {
return fmt.Errorf("missing roles information")
}
if !reflect.DeepEqual(resp.Data["roles"].([]string), expected) {
return fmt.Errorf("Invalid response: \nactual:%#v\nexpected:%#v", resp.Data["roles"].([]string), expected)
}
return nil
},
}
}
func testRoleWrite(t *testing.T, name string, data map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: "roles/" + name,
Data: data,
}
}
func testRoleList(t *testing.T, expected map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.ListOperation,
Path: "roles",
Check: func(resp *logical.Response) error {
if resp == nil {
return fmt.Errorf("nil response")
}
if resp.Data == nil {
return fmt.Errorf("nil data")
}
if !reflect.DeepEqual(resp.Data, expected) {
return fmt.Errorf("Invalid response:\nactual:%#v\nexpected is %#v", resp.Data, expected)
}
return nil
},
}
}
func testRoleRead(t *testing.T, roleName string, expected map[string]interface{}) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.ReadOperation,
Path: "roles/" + roleName,
Check: func(resp *logical.Response) error {
if resp == nil {
if expected == nil {
return nil
}
return fmt.Errorf("bad: %#v", resp)
}
var d sshRole
if err := mapstructure.Decode(resp.Data, &d); err != nil {
return fmt.Errorf("error decoding response:%s", err)
}
if roleName == testOTPRoleName {
if d.KeyType != expected["key_type"] || d.DefaultUser != expected["default_user"] || d.CIDRList != expected["cidr_list"] {
return fmt.Errorf("data mismatch. bad: %#v", resp)
}
} else {
if d.AdminUser != expected["admin_user"] || d.CIDRList != expected["cidr_list"] || d.KeyName != expected["key"] || d.KeyType != expected["key_type"] {
return fmt.Errorf("data mismatch. bad: %#v", resp)
}
}
return nil
},
}
}
func testRoleDelete(t *testing.T, name string) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.DeleteOperation,
Path: "roles/" + name,
}
}
func testCredsWrite(t *testing.T, roleName string, data map[string]interface{}, expectError bool) logicaltest.TestStep {
return logicaltest.TestStep{
Operation: logical.UpdateOperation,
Path: fmt.Sprintf("creds/%s", roleName),
Data: data,
ErrorOk: true,
Check: func(resp *logical.Response) error {
if resp == nil {
return fmt.Errorf("response is nil")
}
if resp.Data == nil {
return fmt.Errorf("data is nil")
}
if expectError {
var e struct {
Error string `mapstructure:"error"`
}
if err := mapstructure.Decode(resp.Data, &e); err != nil {
return err
}
if len(e.Error) == 0 {
return fmt.Errorf("expected error, but write succeeded")
}
return nil
}
if roleName == testDynamicRoleName {
var d struct {
Key string `mapstructure:"key"`
}
if err := mapstructure.Decode(resp.Data, &d); err != nil {
return err
}
if d.Key == "" {
return fmt.Errorf("generated key is an empty string")
}
// Checking only for a parsable key
_, err := ssh.ParsePrivateKey([]byte(d.Key))
if err != nil {
return fmt.Errorf("generated key is invalid")
}
} else {
if resp.Data["key_type"] != KeyTypeOTP {
return fmt.Errorf("incorrect key_type")
}
if resp.Data["key"] == nil {
return fmt.Errorf("invalid key")
}
}
return nil
},
}
}
func testAccUserPrecheckFunc(t *testing.T) func() {
return func() {
if _, err := user.Lookup(testUserName); err != nil {
t.Skipf("Acceptance test skipped unless user %q is present", testUserName)
}
}
}
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