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feat(HIPAA Security): IAM Checks (#360)
Closes #193 Closes #195 Closes #196 Closes #198 Closes #200 ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*
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27 changes: 27 additions & 0 deletions
27
src/HIPAA-Security/rules/iam/hipaaSecurityIAMNoInlinePolicy.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* | ||
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| import { CfnRole, CfnUser, CfnGroup, CfnPolicy } from '@aws-cdk/aws-iam'; | ||
| import { IConstruct, Stack } from '@aws-cdk/core'; | ||
|
|
||
| /** | ||
| * IAM Group, User, and Roles do not contain inline policies - (Control IDs: 164.308(a)(3)(i), 164.308(a)(3)(ii)(A), 164.308(a)(3)(ii)(B), 164.308(a)(4)(i), 164.308(a)(4)(ii)(A), 164.308(a)(4)(ii)(B), 164.308(a)(4)(ii)(C), 164.312(a)(1)) | ||
| * @param node the CfnResource to check | ||
| */ | ||
| export default function (node: IConstruct): boolean { | ||
| if ( | ||
| node instanceof CfnGroup || | ||
| node instanceof CfnUser || | ||
| node instanceof CfnRole | ||
| ) { | ||
| const inlinePolicies = Stack.of(node).resolve(node.policies); | ||
| if (inlinePolicies != undefined) { | ||
| return false; | ||
| } | ||
| } | ||
| if (node instanceof CfnPolicy) { | ||
| return false; | ||
| } | ||
| return true; | ||
| } |
45 changes: 45 additions & 0 deletions
45
src/HIPAA-Security/rules/iam/hipaaSecurityIAMPolicyNoStatementsWithAdminAccess.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| import { | ||
| CfnPolicy, | ||
| CfnManagedPolicy, | ||
| PolicyDocument, | ||
| CfnGroup, | ||
| CfnRole, | ||
| } from '@aws-cdk/aws-iam'; | ||
| import { IConstruct, Stack } from '@aws-cdk/core'; | ||
|
|
||
| /** | ||
| * IAM policies do not grant admin access - (Control IDs: 164.308(a)(3)(i), 164.308(a)(3)(ii)(A), 164.308(a)(3)(ii)(B), 164.308(a)(4)(i), 164.308(a)(4)(ii)(A), 164.308(a)(4)(ii)(B), 164.308(a)(4)(ii)(C), 164.312(a)(1)) | ||
| * @param node the CfnResource to check | ||
| */ | ||
| export default function (node: IConstruct): boolean { | ||
| if (node instanceof CfnPolicy || node instanceof CfnManagedPolicy) { | ||
| if (checkDocument(node, node.policyDocument)) { | ||
| return false; | ||
| } | ||
| } else if (node instanceof CfnGroup || node instanceof CfnRole) { | ||
| if (node.policies != undefined && checkDocument(node, node.policies)) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| /** | ||
| * Helper function for parsing through the policy document | ||
| * @param node the CfnResource to Check | ||
| * @param policyDoc the JSON policy document | ||
| * @returns boolean | ||
| */ | ||
| function checkDocument(node: IConstruct, policyDoc: any): boolean { | ||
| const resolvedDoc = Stack.of(node).resolve(policyDoc) as PolicyDocument; | ||
| const reg = | ||
| /"Action":\[?(.*,)?"\*"(,.*)?\]?,"Effect":"Allow","Resource":\[?(.*,)?"(?:arn(?::.*(?::)?)?)?\*"(,.*)?\]?/gm; | ||
| if (JSON.stringify(resolvedDoc).search(reg) != -1) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } |
44 changes: 44 additions & 0 deletions
44
src/HIPAA-Security/rules/iam/hipaaSecurityIAMPolicyNoStatementsWithFullAccess.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| import { | ||
| CfnPolicy, | ||
| CfnManagedPolicy, | ||
| PolicyDocument, | ||
| CfnGroup, | ||
| CfnRole, | ||
| } from '@aws-cdk/aws-iam'; | ||
| import { IConstruct, Stack } from '@aws-cdk/core'; | ||
|
|
||
| /** | ||
| * IAM policies do not grant full access - (Control IDs: 164.308(a)(3)(i), 164.308(a)(3)(ii)(A), 164.308(a)(3)(ii)(B), 164.308(a)(4)(i), 164.308(a)(4)(ii)(A), 164.308(a)(4)(ii)(B), 164.308(a)(4)(ii)(C), 164.312(a)(1)) | ||
| * @param node the CfnResource to check | ||
| */ | ||
| export default function (node: IConstruct): boolean { | ||
| if (node instanceof CfnPolicy || node instanceof CfnManagedPolicy) { | ||
| if (checkDocument(node, node.policyDocument)) { | ||
| return false; | ||
| } | ||
| } else if (node instanceof CfnGroup || node instanceof CfnRole) { | ||
| if (node.policies != undefined && checkDocument(node, node.policies)) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| /** | ||
| * Helper function for parsing through the policy document | ||
| * @param node the CfnResource to Check | ||
| * @param policyDoc the JSON policy document | ||
| * @returns boolean | ||
| */ | ||
| function checkDocument(node: IConstruct, policyDoc: any): boolean { | ||
| const resolvedDoc = Stack.of(node).resolve(policyDoc) as PolicyDocument; | ||
| const reg = /"Action":\[?(.*,)?"(?:\w+:)?\*"(,.*)?\]?,"Effect":"Allow"/gm; | ||
| if (JSON.stringify(resolvedDoc).search(reg) != -1) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } |
20 changes: 20 additions & 0 deletions
20
src/HIPAA-Security/rules/iam/hipaaSecurityIAMUserGroupMembership.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| /* | ||
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| import { CfnUser } from '@aws-cdk/aws-iam'; | ||
| import { IConstruct, Stack } from '@aws-cdk/core'; | ||
|
|
||
| /** | ||
| * IAM users are assigned to at least one group - (Control IDs: 164.308(a)(3)(i), 164.308(a)(3)(ii)(A), 164.308(a)(3)(ii)(B), 164.308(a)(4)(i), 164.308(a)(4)(ii)(A), 164.308(a)(4)(ii)(B), 164.308(a)(4)(ii)(C), 164.312(a)(1)) | ||
| * @param node the CfnResource to check | ||
| */ | ||
| export default function (node: IConstruct): boolean { | ||
| if (node instanceof CfnUser) { | ||
| const userGroup = Stack.of(node).resolve(node.groups); | ||
| if (userGroup == undefined) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } |
25 changes: 25 additions & 0 deletions
25
src/HIPAA-Security/rules/iam/hipaaSecurityIAMUserNoPolicies.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| import { CfnPolicy, CfnManagedPolicy, CfnUser } from '@aws-cdk/aws-iam'; | ||
| import { IConstruct, Stack } from '@aws-cdk/core'; | ||
| /** | ||
| * IAM policies are not attached at the user level - (Control IDs: 164.308(a)(3)(i), 164.308(a)(3)(ii)(A), 164.308(a)(3)(ii)(B), 164.308(a)(4)(i), 164.308(a)(4)(ii)(A), 164.308(a)(4)(ii)(B), 164.308(a)(4)(ii)(C), 164.312(a)(1)) | ||
| * @param node the CfnResource to check | ||
| */ | ||
| export default function (node: IConstruct): boolean { | ||
| if (node instanceof CfnPolicy || node instanceof CfnManagedPolicy) { | ||
| const policyUsers = Stack.of(node).resolve(node.users); | ||
| if (policyUsers != undefined) { | ||
| return false; | ||
| } | ||
| } else if (node instanceof CfnUser) { | ||
| const policies = Stack.of(node).resolve(node.policies); | ||
| const managedPolicyArns = Stack.of(node).resolve(node.managedPolicyArns); | ||
| if (policies != undefined || managedPolicyArns != undefined) { | ||
| return false; | ||
| } | ||
| } | ||
| return true; | ||
| } |
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