Merge pull request #1627 from ydb-platform/fix-1624

fixed issue 'Explicit null dereferenced' (CWE-476)

Author: asmyasnikov

CHANGELOG.md

@@ -1,3 +1,5 @@
+* Fixed explicit null dereferenced issue in internal/credentials/static.go (CWE-476)
+
 ## v3.99.1
 * Bumped dependencies:
   - `golang.org/x/net from` v0.23.0 to v0.33.0

internal/credentials/access_error.go renamed to internal/credentials/errors.go

@@ -1,6 +1,7 @@
 package credentials
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -13,6 +14,8 @@ import (
 	"github.com/ydb-platform/ydb-go-sdk/v3/internal/xstring"
 )
 
+var errNilExpiresAt = errors.New("nil claims.ExpiresAt field")
+
 type authErrorOption interface {
 	applyAuthErrorOption(w io.Writer)
 }

internal/credentials/access_error_test.go renamed to internal/credentials/errors_test.go

@@ -42,7 +42,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"Anonymous{}\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:33)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:33)`",
 		},
 		{
 			err: AccessError(
@@ -57,7 +57,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"Anonymous{From:\\\"TestAccessError\\\"}\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:48)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:48)`",
 		},
 		{
 			err: AccessError(
@@ -72,7 +72,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"AccessToken{Token:\\\"****(CRC-32c: 9B7801F4)\\\"}\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:63)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:63)`",
 		},
 		{
 			err: AccessError(
@@ -87,7 +87,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"AccessToken{Token:\\\"****(CRC-32c: 9B7801F4)\\\",From:\\\"TestAccessError\\\"}\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:78)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:78)`",
 		},
 		{
 			err: AccessError(
@@ -106,7 +106,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"Static{User:\\\"USER\\\",Password:\\\"SEC**********RD\\\",Token:\\\"****(CRC-32c: 00000000)\\\"}\"" + //nolint:lll
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:93)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:93)`",
 		},
 		{
 			err: AccessError(
@@ -125,7 +125,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"Static{User:\\\"USER\\\",Password:\\\"SEC**********RD\\\",Token:\\\"****(CRC-32c: 00000000)\\\",From:\\\"TestAccessError\\\"}\"" + //nolint:lll
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:112)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:112)`",
 		},
 		{
 			err: AccessError(
@@ -140,7 +140,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.customCredentials\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:131)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:131)`",
 		},
 		{
 			err: AccessError(
@@ -155,7 +155,7 @@ func TestAccessError(t *testing.T) {
 				"database:\"/local\"," +
 				"credentials:\"Anonymous{}\"" +
 				"): test " +
-				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(access_error_test.go:146)`", //nolint:lll
+				"at `github.com/ydb-platform/ydb-go-sdk/v3/internal/credentials.TestAccessError(errors_test.go:146)`",
 		},
 	} {
 		t.Run("", func(t *testing.T) {

internal/credentials/static.go

@@ -146,6 +146,10 @@ func parseExpiresAt(raw string) (expiresAt time.Time, err error) {
 		return expiresAt, xerrors.WithStackTrace(err)
 	}
 
+	if claims.ExpiresAt == nil {
+		return expiresAt, xerrors.WithStackTrace(errNilExpiresAt)
+	}
+
 	return claims.ExpiresAt.Time, nil
 }