This PR fixes a security issue where an IAM user based on his policy is granted more privileges than restricted by the users IAM policy. This is due to an issue of prefix based Matcher() function which was incorrectly matching prefix based on resource prefixes instead of exact match.
242 lines
8.5 KiB
Go
242 lines
8.5 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package iampolicy
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"testing"
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)
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func TestResourceSetBucketResourceExists(t *testing.T) {
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testCases := []struct {
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resourceSet ResourceSet
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expectedResult bool
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}{
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{NewResourceSet(NewResource("*", "")), true},
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{NewResourceSet(NewResource("mybucket", "")), true},
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{NewResourceSet(NewResource("mybucket*", "")), true},
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{NewResourceSet(NewResource("mybucket?0", "")), true},
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{NewResourceSet(NewResource("mybucket", "/2010/photos/*"), NewResource("mybucket", "")), true},
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{NewResourceSet(NewResource("", "*")), false},
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{NewResourceSet(NewResource("*", "*")), false},
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{NewResourceSet(NewResource("mybucket", "*")), false},
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{NewResourceSet(NewResource("mybucket*", "/myobject")), false},
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{NewResourceSet(NewResource("mybucket?0", "/2010/photos/*")), false},
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}
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for i, testCase := range testCases {
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result := testCase.resourceSet.bucketResourceExists()
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if result != testCase.expectedResult {
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t.Fatalf("case %v: expected: %v, got: %v", i+1, testCase.expectedResult, result)
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}
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}
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}
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func TestResourceSetObjectResourceExists(t *testing.T) {
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testCases := []struct {
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resourceSet ResourceSet
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expectedResult bool
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}{
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{NewResourceSet(NewResource("*", "")), true},
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{NewResourceSet(NewResource("mybucket*", "")), true},
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{NewResourceSet(NewResource("", "*")), true},
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{NewResourceSet(NewResource("*", "*")), true},
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{NewResourceSet(NewResource("mybucket", "*")), true},
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{NewResourceSet(NewResource("mybucket*", "/myobject")), true},
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{NewResourceSet(NewResource("mybucket?0", "/2010/photos/*")), true},
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{NewResourceSet(NewResource("mybucket", ""), NewResource("mybucket", "/2910/photos/*")), true},
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{NewResourceSet(NewResource("mybucket", "")), false},
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{NewResourceSet(NewResource("mybucket?0", "")), false},
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}
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for i, testCase := range testCases {
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result := testCase.resourceSet.objectResourceExists()
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if result != testCase.expectedResult {
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t.Fatalf("case %v: expected: %v, got: %v", i+1, testCase.expectedResult, result)
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}
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}
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}
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func TestResourceSetAdd(t *testing.T) {
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testCases := []struct {
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resourceSet ResourceSet
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resource Resource
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expectedResult ResourceSet
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}{
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{NewResourceSet(), NewResource("mybucket", "/myobject*"),
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NewResourceSet(NewResource("mybucket", "/myobject*"))},
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{NewResourceSet(NewResource("mybucket", "/myobject*")),
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NewResource("mybucket", "/yourobject*"),
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NewResourceSet(NewResource("mybucket", "/myobject*"),
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NewResource("mybucket", "/yourobject*"))},
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{NewResourceSet(NewResource("mybucket", "/myobject*")),
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NewResource("mybucket", "/myobject*"),
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NewResourceSet(NewResource("mybucket", "/myobject*"))},
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}
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for i, testCase := range testCases {
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testCase.resourceSet.Add(testCase.resource)
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if !reflect.DeepEqual(testCase.resourceSet, testCase.expectedResult) {
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t.Fatalf("case %v: expected: %v, got: %v", i+1, testCase.expectedResult, testCase.resourceSet)
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}
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}
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}
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func TestResourceSetIntersection(t *testing.T) {
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testCases := []struct {
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set ResourceSet
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setToIntersect ResourceSet
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expectedResult ResourceSet
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}{
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{NewResourceSet(), NewResourceSet(NewResource("mybucket", "/myobject*")), NewResourceSet()},
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{NewResourceSet(NewResource("mybucket", "/myobject*")), NewResourceSet(), NewResourceSet()},
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{NewResourceSet(NewResource("mybucket", "/myobject*")),
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NewResourceSet(NewResource("mybucket", "/myobject*"), NewResource("mybucket", "/yourobject*")),
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NewResourceSet(NewResource("mybucket", "/myobject*"))},
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}
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for i, testCase := range testCases {
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result := testCase.set.Intersection(testCase.setToIntersect)
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if !reflect.DeepEqual(result, testCase.expectedResult) {
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t.Fatalf("case %v: expected: %v, got: %v\n", i+1, testCase.expectedResult, testCase.set)
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}
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}
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}
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func TestResourceSetMarshalJSON(t *testing.T) {
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testCases := []struct {
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resoruceSet ResourceSet
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expectedResult []byte
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expectErr bool
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}{
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{NewResourceSet(NewResource("mybucket", "/myobject*")),
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[]byte(`["arn:aws:s3:::mybucket/myobject*"]`), false},
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{NewResourceSet(NewResource("mybucket", "/photos/myobject*")),
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[]byte(`["arn:aws:s3:::mybucket/photos/myobject*"]`), false},
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{NewResourceSet(), nil, true},
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}
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for i, testCase := range testCases {
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result, err := json.Marshal(testCase.resoruceSet)
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expectErr := (err != nil)
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if expectErr != testCase.expectErr {
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t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
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}
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if !testCase.expectErr {
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if !reflect.DeepEqual(result, testCase.expectedResult) {
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t.Fatalf("case %v: result: expected: %v, got: %v", i+1, string(testCase.expectedResult), string(result))
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}
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}
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}
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}
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func TestResourceSetMatch(t *testing.T) {
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testCases := []struct {
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resourceSet ResourceSet
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resource string
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expectedResult bool
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}{
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{NewResourceSet(NewResource("*", "")), "mybucket", true},
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{NewResourceSet(NewResource("*", "")), "mybucket/myobject", true},
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{NewResourceSet(NewResource("mybucket*", "")), "mybucket", true},
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{NewResourceSet(NewResource("mybucket*", "")), "mybucket/myobject", true},
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{NewResourceSet(NewResource("", "*")), "/myobject", true},
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{NewResourceSet(NewResource("*", "*")), "mybucket/myobject", true},
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{NewResourceSet(NewResource("mybucket", "*")), "mybucket/myobject", true},
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{NewResourceSet(NewResource("mybucket*", "/myobject")), "mybucket/myobject", true},
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{NewResourceSet(NewResource("mybucket*", "/myobject")), "mybucket100/myobject", true},
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{NewResourceSet(NewResource("mybucket?0", "/2010/photos/*")), "mybucket20/2010/photos/1.jpg", true},
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{NewResourceSet(NewResource("mybucket", "")), "mybucket", true},
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{NewResourceSet(NewResource("mybucket?0", "")), "mybucket30", true},
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{NewResourceSet(NewResource("mybucket?0", "/2010/photos/*"),
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NewResource("mybucket", "/2010/photos/*")), "mybucket/2010/photos/1.jpg", true},
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{NewResourceSet(NewResource("", "*")), "mybucket/myobject", false},
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{NewResourceSet(NewResource("*", "*")), "mybucket", false},
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{NewResourceSet(NewResource("mybucket", "*")), "mybucket10/myobject", false},
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{NewResourceSet(NewResource("mybucket", "")), "mybucket/myobject", false},
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{NewResourceSet(), "mybucket/myobject", false},
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}
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for i, testCase := range testCases {
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testCase := testCase
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t.Run(fmt.Sprintf("Test%d", i+1), func(t *testing.T) {
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result := testCase.resourceSet.Match(testCase.resource, nil)
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if result != testCase.expectedResult {
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t.Errorf("case %v: expected: %v, got: %v", i+1, testCase.expectedResult, result)
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}
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})
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}
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}
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func TestResourceSetUnmarshalJSON(t *testing.T) {
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testCases := []struct {
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data []byte
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expectedResult ResourceSet
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expectErr bool
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}{
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{[]byte(`"arn:aws:s3:::mybucket/myobject*"`),
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NewResourceSet(NewResource("mybucket", "/myobject*")), false},
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{[]byte(`"arn:aws:s3:::mybucket/photos/myobject*"`),
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NewResourceSet(NewResource("mybucket", "/photos/myobject*")), false},
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{[]byte(`"arn:aws:s3:::mybucket"`), NewResourceSet(NewResource("mybucket", "")), false},
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{[]byte(`"mybucket/myobject*"`), nil, true},
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}
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for i, testCase := range testCases {
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var result ResourceSet
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err := json.Unmarshal(testCase.data, &result)
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expectErr := (err != nil)
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if expectErr != testCase.expectErr {
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t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
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}
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if !testCase.expectErr {
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if !reflect.DeepEqual(result, testCase.expectedResult) {
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t.Fatalf("case %v: result: expected: %v, got: %v", i+1, testCase.expectedResult, result)
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}
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}
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}
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}
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func TestResourceSetValidate(t *testing.T) {
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testCases := []struct {
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resourceSet ResourceSet
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expectErr bool
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}{
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{NewResourceSet(NewResource("mybucket", "/myobject*")), false},
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{NewResourceSet(NewResource("", "/myobject*")), false},
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{NewResourceSet(NewResource("", "")), true},
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}
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for i, testCase := range testCases {
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err := testCase.resourceSet.Validate()
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expectErr := (err != nil)
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if expectErr != testCase.expectErr {
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t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
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}
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}
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}
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