Support for CPS URLs in Custom Policy Identifiers. (#15751)
* Support for CPS URLs in Custom Policy Identifiers. * go fmt * Add Changelog * Fix panic in test-cases. * Update builtin/logical/pki/path_roles.go Fix intial nil identifiers. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> * Make valid policy OID so don't break ASN parse in test. * Add test cases. * go fmt. Co-authored-by: Steven Clark <steven.clark@hashicorp.com>
This commit is contained in:
Kit Haines
GitHub
parent
f293d112e4
commit
4f532ecc4d
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@ -3,6 +3,7 @@ package pki
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import (
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"context"
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"crypto/x509"
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"encoding/json"
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"fmt"
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"strings"
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"time"
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@ -384,8 +385,10 @@ for "generate_lease".`,
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},
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"policy_identifiers": {
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Type: framework.TypeCommaStringSlice,
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Description: `A comma-separated string or list of policy OIDs.`,
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Type: framework.TypeCommaStringSlice,
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Description: `A comma-separated string or list of policy OIDs, or a JSON list of qualified policy
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information, which must include an oid, and may include a notice and/or cps url, using the form
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[{"oid"="1.3.6.1.4.1.7.8","notice"="I am a user Notice"}, {"oid"="1.3.6.1.4.1.44947.1.2.4 ","cps"="https://example.com"}].`,
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},
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"basic_constraints_valid_for_non_ca": {
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@ -658,7 +661,7 @@ func (b *backend) pathRoleCreate(ctx context.Context, req *logical.Request, data
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NoStore: data.Get("no_store").(bool),
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RequireCN: data.Get("require_cn").(bool),
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AllowedSerialNumbers: data.Get("allowed_serial_numbers").([]string),
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PolicyIdentifiers: data.Get("policy_identifiers").([]string),
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PolicyIdentifiers: getPolicyIdentifier(data, nil),
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BasicConstraintsValidForNonCA: data.Get("basic_constraints_valid_for_non_ca").(bool),
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NotBeforeDuration: time.Duration(data.Get("not_before_duration").(int)) * time.Second,
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NotAfter: data.Get("not_after").(string),
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@ -747,11 +750,9 @@ func validateRole(b *backend, entry *roleEntry, ctx context.Context, s logical.S
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}
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if len(entry.PolicyIdentifiers) > 0 {
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for _, oidstr := range entry.PolicyIdentifiers {
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_, err := certutil.StringToOid(oidstr)
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if err != nil {
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return logical.ErrorResponse(fmt.Sprintf("%q could not be parsed as a valid oid for a policy identifier", oidstr)), nil
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}
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_, err := certutil.CreatePolicyInformationExtensionFromStorageStrings(entry.PolicyIdentifiers)
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if err != nil {
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return nil, err
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}
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}
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@ -848,7 +849,7 @@ func (b *backend) pathRolePatch(ctx context.Context, req *logical.Request, data
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NoStore: getWithExplicitDefault(data, "no_store", oldEntry.NoStore).(bool),
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RequireCN: getWithExplicitDefault(data, "require_cn", oldEntry.RequireCN).(bool),
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AllowedSerialNumbers: getWithExplicitDefault(data, "allowed_serial_numbers", oldEntry.AllowedSerialNumbers).([]string),
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PolicyIdentifiers: getWithExplicitDefault(data, "policy_identifiers", oldEntry.PolicyIdentifiers).([]string),
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PolicyIdentifiers: getPolicyIdentifier(data, &oldEntry.PolicyIdentifiers),
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BasicConstraintsValidForNonCA: getWithExplicitDefault(data, "basic_constraints_valid_for_non_ca", oldEntry.BasicConstraintsValidForNonCA).(bool),
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NotBeforeDuration: getTimeWithExplicitDefault(data, "not_before_duration", oldEntry.NotBeforeDuration),
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NotAfter: getWithExplicitDefault(data, "not_after", oldEntry.NotAfter).(string),
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@ -1116,3 +1117,45 @@ const pathListRolesHelpDesc = `Roles will be listed by the role name.`
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const pathRoleHelpSyn = `Manage the roles that can be created with this backend.`
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const pathRoleHelpDesc = `This path lets you manage the roles that can be created with this backend.`
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const policyIdentifiersParam = "policy_identifiers"
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func getPolicyIdentifier(data *framework.FieldData, defaultIdentifiers *[]string) []string {
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policyIdentifierEntry, ok := data.GetOk(policyIdentifiersParam)
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if !ok {
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// No Entry for policy_identifiers
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if defaultIdentifiers != nil {
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return *defaultIdentifiers
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}
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return data.Get(policyIdentifiersParam).([]string)
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}
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// Could Be A JSON Entry
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policyIdentifierJsonEntry := data.Raw[policyIdentifiersParam]
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policyIdentifierJsonString, ok := policyIdentifierJsonEntry.(string)
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if ok {
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policyIdentifiers, err := parsePolicyIdentifiersFromJson(policyIdentifierJsonString)
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if err == nil {
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return policyIdentifiers
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}
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}
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// Else could Just Be A List of OIDs
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return policyIdentifierEntry.([]string)
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}
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func parsePolicyIdentifiersFromJson(policyIdentifiers string) ([]string, error) {
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var entries []certutil.PolicyIdentifierWithQualifierEntry
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var policyIdentifierList []string
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err := json.Unmarshal([]byte(policyIdentifiers), &entries)
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if err != nil {
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return policyIdentifierList, err
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}
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policyIdentifierList = make([]string, 0, len(entries))
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for _, entry := range entries {
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policyString, err := json.Marshal(entry)
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if err != nil {
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return policyIdentifierList, err
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}
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policyIdentifierList = append(policyIdentifierList, string(policyString))
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}
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return policyIdentifierList, nil
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}
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@ -2,13 +2,19 @@ package pki
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import (
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"context"
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"crypto/x509"
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"encoding/asn1"
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"encoding/base64"
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"encoding/pem"
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"fmt"
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"testing"
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"time"
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"github.com/go-errors/errors"
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"github.com/hashicorp/go-secure-stdlib/strutil"
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"github.com/hashicorp/vault/sdk/logical"
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"github.com/mitchellh/mapstructure"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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@ -928,8 +934,8 @@ func TestPki_RolePatch(t *testing.T) {
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},
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{
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Field: "policy_identifiers",
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Before: []string{"1.2.3.4.5"},
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Patched: []string{"5.4.3.2.1"},
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Before: []string{"1.3.6.1.4.1.1.1"},
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Patched: []string{"1.3.6.1.4.1.1.2"},
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},
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{
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Field: "basic_constraints_valid_for_non_ca",
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@ -1019,3 +1025,141 @@ func TestPki_RolePatch(t *testing.T) {
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}
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}
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}
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func TestPKI_RolePolicyInformation_Flat(t *testing.T) {
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type TestCase struct {
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Input interface{}
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ASN interface{}
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OidList []string
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}
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expectedSimpleAsnExtension := "MBYwCQYHKwYBBAEBATAJBgcrBgEEAQEC"
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expectedSimpleOidList := append(*new([]string), "1.3.6.1.4.1.1.1", "1.3.6.1.4.1.1.2")
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testCases := []TestCase{
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{
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Input: "1.3.6.1.4.1.1.1,1.3.6.1.4.1.1.2",
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ASN: expectedSimpleAsnExtension,
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OidList: expectedSimpleOidList,
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},
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{
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Input: "[{\"oid\":\"1.3.6.1.4.1.1.1\"},{\"oid\":\"1.3.6.1.4.1.1.2\"}]",
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ASN: expectedSimpleAsnExtension,
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OidList: expectedSimpleOidList,
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},
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{
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Input: "[{\"oid\":\"1.3.6.1.4.1.7.8\",\"notice\":\"I am a user Notice\"},{\"oid\":\"1.3.6.1.44947.1.2.4\",\"cps\":\"https://example.com\"}]",
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ASN: "MF8wLQYHKwYBBAEHCDAiMCAGCCsGAQUFBwICMBQMEkkgYW0gYSB1c2VyIE5vdGljZTAuBgkrBgGC3xMBAgQwITAfBggrBgEFBQcCARYTaHR0cHM6Ly9leGFtcGxlLmNvbQ==",
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OidList: append(*new([]string), "1.3.6.1.4.1.7.8", "1.3.6.1.44947.1.2.4"),
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},
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}
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b, storage := createBackendWithStorage(t)
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caData := map[string]interface{}{
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"common_name": "myvault.com",
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"ttl": "5h",
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"ip_sans": "127.0.0.1",
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}
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caReq := &logical.Request{
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Operation: logical.UpdateOperation,
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Path: "root/generate/internal",
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Storage: storage,
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Data: caData,
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}
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caResp, err := b.HandleRequest(context.Background(), caReq)
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if err != nil || (caResp != nil && caResp.IsError()) {
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t.Fatalf("bad: err: %v resp: %#v", err, caResp)
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}
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for index, testCase := range testCases {
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var roleResp *logical.Response
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var issueResp *logical.Response
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var err error
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// Create/update the role
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roleData := map[string]interface{}{}
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roleData[policyIdentifiersParam] = testCase.Input
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roleReq := &logical.Request{
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Operation: logical.UpdateOperation,
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Path: "roles/testrole",
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Storage: storage,
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Data: roleData,
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}
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roleResp, err = b.HandleRequest(context.Background(), roleReq)
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if err != nil || (roleResp != nil && roleResp.IsError()) {
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t.Fatalf("bad [%d], setting policy identifier %v err: %v resp: %#v", index, testCase.Input, err, roleResp)
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}
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// Issue Using this role
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issueData := map[string]interface{}{}
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issueData["common_name"] = "localhost"
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issueData["ttl"] = "2s"
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issueReq := &logical.Request{
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Operation: logical.UpdateOperation,
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Path: "issue/testrole",
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Storage: storage,
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Data: issueData,
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}
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issueResp, err = b.HandleRequest(context.Background(), issueReq)
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if err != nil || (issueResp != nil && issueResp.IsError()) {
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t.Fatalf("bad [%d], setting policy identifier %v err: %v resp: %#v", index, testCase.Input, err, issueResp)
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}
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// Validate the OIDs
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policyIdentifiers, err := getPolicyIdentifiersOffCertificate(*issueResp)
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if err != nil {
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t.Fatalf("bad [%d], getting policy identifier from %v err: %v resp: %#v", index, testCase.Input, err, issueResp)
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}
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if len(policyIdentifiers) != len(testCase.OidList) {
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t.Fatalf("bad [%d], wrong certificate policy identifier from %v len expected: %d got %d", index, testCase.Input, len(testCase.OidList), len(policyIdentifiers))
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}
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for i, identifier := range policyIdentifiers {
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if identifier != testCase.OidList[i] {
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t.Fatalf("bad [%d], wrong certificate policy identifier from %v expected: %v got %v", index, testCase.Input, testCase.OidList[i], policyIdentifiers[i])
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}
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}
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// Validate the ASN
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certificateAsn, err := getPolicyInformationExtensionOffCertificate(*issueResp)
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if err != nil {
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t.Fatalf("bad [%d], getting extension from %v err: %v resp: %#v", index, testCase.Input, err, issueResp)
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}
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certificateB64 := make([]byte, len(certificateAsn)*2)
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base64.StdEncoding.Encode(certificateB64, certificateAsn)
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certificateString := string(certificateB64[:])
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assert.Contains(t, certificateString, testCase.ASN)
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}
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}
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func getPolicyIdentifiersOffCertificate(resp logical.Response) ([]string, error) {
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stringCertificate := resp.Data["certificate"].(string)
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block, _ := pem.Decode([]byte(stringCertificate))
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certificate, err := x509.ParseCertificate(block.Bytes)
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if err != nil {
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return nil, err
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}
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policyIdentifierStrings := make([]string, len(certificate.PolicyIdentifiers))
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for index, asnOid := range certificate.PolicyIdentifiers {
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policyIdentifierStrings[index] = asnOid.String()
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}
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return policyIdentifierStrings, nil
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}
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func getPolicyInformationExtensionOffCertificate(resp logical.Response) ([]byte, error) {
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stringCertificate := resp.Data["certificate"].(string)
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block, _ := pem.Decode([]byte(stringCertificate))
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certificate, err := x509.ParseCertificate(block.Bytes)
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if err != nil {
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return nil, err
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}
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for _, extension := range certificate.Extensions {
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if extension.Id.Equal(asn1.ObjectIdentifier{2, 5, 29, 32}) {
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return extension.Value, nil
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}
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}
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return *new([]byte), errors.New("No Policy Information Extension Found")
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}
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@ -0,0 +1,3 @@
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```release-note:improvement
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secrets/pki: Add support for CPS URLs and User Notice to Policy Information
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```
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@ -446,18 +446,30 @@ func ParsePublicKeyPEM(data []byte) (interface{}, error) {
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return nil, errors.New("data does not contain any valid public keys")
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}
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// addPolicyIdentifiers adds certificate policies extension
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//
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// AddPolicyIdentifiers adds certificate policies extension, based on CreationBundle
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func AddPolicyIdentifiers(data *CreationBundle, certTemplate *x509.Certificate) {
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for _, oidstr := range data.Params.PolicyIdentifiers {
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oid, err := StringToOid(oidstr)
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oidOnly := true
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for _, oidStr := range data.Params.PolicyIdentifiers {
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oid, err := StringToOid(oidStr)
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if err == nil {
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certTemplate.PolicyIdentifiers = append(certTemplate.PolicyIdentifiers, oid)
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}
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if err != nil {
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oidOnly = false
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}
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}
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if !oidOnly { // Because all policy information is held in the same extension, when we use an extra extension to
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// add policy qualifier information, that overwrites any information in the PolicyIdentifiers field on the Cert
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// Template, so we need to reparse all the policy identifiers here
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extension, err := CreatePolicyInformationExtensionFromStorageStrings(data.Params.PolicyIdentifiers)
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if err == nil {
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// If this errors out, don't add it, rely on the OIDs parsed into PolicyIdentifiers above
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certTemplate.ExtraExtensions = append(certTemplate.ExtraExtensions, *extension)
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}
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}
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}
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// addExtKeyUsageOids adds custom extended key usage OIDs to certificate
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// AddExtKeyUsageOids adds custom extended key usage OIDs to certificate
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func AddExtKeyUsageOids(data *CreationBundle, certTemplate *x509.Certificate) {
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for _, oidstr := range data.Params.ExtKeyUsageOIDs {
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oid, err := StringToOid(oidstr)
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@ -17,7 +17,10 @@ import (
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/asn1"
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"encoding/json"
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"encoding/pem"
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"errors"
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"fmt"
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"math/big"
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"net"
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@ -894,3 +897,114 @@ func (p *KeyBundle) ToPrivateKeyPemString() (string, error) {
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return "", errutil.InternalError{Err: "No Private Key Bytes to Wrap"}
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}
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// PolicyIdentifierWithQualifierEntry Structure for Internal Storage
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type PolicyIdentifierWithQualifierEntry struct {
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PolicyIdentifierOid string `json:"oid",mapstructure:"oid"`
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CPS string `json:"cps,omitempty",mapstructure:"cps"`
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Notice string `json:"notice,omitempty",mapstructure:"notice"`
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}
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// GetPolicyIdentifierFromString parses out the internal structure of a Policy Identifier
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func GetPolicyIdentifierFromString(policyIdentifier string) (*PolicyIdentifierWithQualifierEntry, error) {
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if policyIdentifier == "" {
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return nil, nil
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}
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entry := &PolicyIdentifierWithQualifierEntry{}
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// Either a OID, or a JSON Entry: First check OID:
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_, err := StringToOid(policyIdentifier)
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if err == nil {
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entry.PolicyIdentifierOid = policyIdentifier
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return entry, nil
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}
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// Now Check If JSON Entry
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jsonErr := json.Unmarshal([]byte(policyIdentifier), &entry)
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if jsonErr != nil { // Neither, if we got here
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return entry, errors.New(fmt.Sprintf("Policy Identifier %q is neither a valid OID: %s, Nor JSON Policy Identifier: %s", policyIdentifier, err.Error(), jsonErr.Error()))
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}
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return entry, nil
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}
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// Policy Identifier with Qualifier Structure for ASN Marshalling:
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var policyInformationOid = asn1.ObjectIdentifier{2, 5, 29, 32}
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type policyInformation struct {
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PolicyIdentifier asn1.ObjectIdentifier
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Qualifiers []interface{} `asn1:"tag:optional,omitempty"`
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}
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var cpsPolicyQualifierID = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 2, 1}
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type cpsUrlPolicyQualifier struct {
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PolicyQualifierID asn1.ObjectIdentifier
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Qualifier string `asn1:"tag:optional,ia5"`
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}
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var userNoticePolicyQualifierID = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 2, 2}
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type userNoticePolicyQualifier struct {
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PolicyQualifierID asn1.ObjectIdentifier
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Qualifier userNotice
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}
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type userNotice struct {
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ExplicitText string `asn1:"tag:optional,utf8"`
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}
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func createPolicyIdentifierWithQualifier(entry PolicyIdentifierWithQualifierEntry) (*policyInformation, error) {
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// Each Policy is Identified by a Unique ID, as designated here:
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policyOid, err := StringToOid(entry.PolicyIdentifierOid)
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if err != nil {
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return nil, err
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}
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pi := policyInformation{
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PolicyIdentifier: policyOid,
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}
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if entry.CPS != "" {
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qualifier := cpsUrlPolicyQualifier{
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PolicyQualifierID: cpsPolicyQualifierID,
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Qualifier: entry.CPS,
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}
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pi.Qualifiers = append(pi.Qualifiers, qualifier)
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}
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if entry.Notice != "" {
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qualifier := userNoticePolicyQualifier{
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PolicyQualifierID: userNoticePolicyQualifierID,
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Qualifier: userNotice{
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ExplicitText: entry.Notice,
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},
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}
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pi.Qualifiers = append(pi.Qualifiers, qualifier)
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}
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return &pi, nil
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}
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// CreatePolicyInformationExtensionFromStorageStrings parses the stored policyIdentifiers, which might be JSON Policy
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// Identifier with Qualifier Entries or String OIDs, and returns an extension if everything parsed correctly, and an
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// error if constructing
|
||||
func CreatePolicyInformationExtensionFromStorageStrings(policyIdentifiers []string) (*pkix.Extension, error) {
|
||||
var policyInformationList []policyInformation
|
||||
for _, policyIdentifierStr := range policyIdentifiers {
|
||||
policyIdentifierEntry, err := GetPolicyIdentifierFromString(policyIdentifierStr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if policyIdentifierEntry != nil { // Okay to skip empty entries if there is no error
|
||||
policyInformationStruct, err := createPolicyIdentifierWithQualifier(*policyIdentifierEntry)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
policyInformationList = append(policyInformationList, *policyInformationStruct)
|
||||
}
|
||||
}
|
||||
asn1Bytes, err := asn1.Marshal(policyInformationList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &pkix.Extension{
|
||||
Id: policyInformationOid,
|
||||
Critical: false,
|
||||
Value: asn1Bytes,
|
||||
}, nil
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue