cdk-nag
Version:
Check CDK v2 applications for best practices using a combination on available rule packs.
80 lines • 10.4 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
/*
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
const path_1 = require("path");
const aws_cdk_lib_1 = require("aws-cdk-lib");
const aws_iam_1 = require("aws-cdk-lib/aws-iam");
const nag_rules_1 = require("../../nag-rules");
/**
* IAM Groups have at least one IAM User
* @param node the CfnResource to check
*/
exports.default = Object.defineProperty((node) => {
if (node instanceof aws_iam_1.CfnGroup) {
const groupLogicalId = nag_rules_1.NagRules.resolveResourceFromIntrinsic(node, node.ref);
const groupName = aws_cdk_lib_1.Stack.of(node).resolve(node.groupName);
let found = false;
for (const child of aws_cdk_lib_1.Stack.of(node).node.findAll()) {
if (child instanceof aws_iam_1.CfnUser) {
if (isMatchingUser(child, groupLogicalId, groupName)) {
found = true;
break;
}
}
else if (child instanceof aws_iam_1.CfnUserToGroupAddition) {
if (isMatchingGroupAddition(child, groupLogicalId, groupName)) {
found = true;
break;
}
}
}
if (!found) {
return nag_rules_1.NagRuleCompliance.NON_COMPLIANT;
}
return nag_rules_1.NagRuleCompliance.COMPLIANT;
}
else {
return nag_rules_1.NagRuleCompliance.NOT_APPLICABLE;
}
}, 'name', { value: (0, path_1.parse)(__filename).name });
/**
* Helper function to check whether the IAM User belongs to the IAM Group
* @param node the CfnUser to check
* @param groupLogicalId the Cfn Logical ID of the group
* @param groupName the name of the group
* returns whether the CfnUser is in the given group
*/
function isMatchingUser(node, groupLogicalId, groupName) {
const groups = aws_cdk_lib_1.Stack.of(node).resolve(node.groups);
if (Array.isArray(groups)) {
for (const group of groups) {
const resolvedGroup = JSON.stringify(aws_cdk_lib_1.Stack.of(node).resolve(group));
if (new RegExp(`${groupLogicalId}(?![\\w])`).test(resolvedGroup) ||
(groupName != undefined &&
new RegExp(`${groupName}(?![\\w\\-_\\.])`).test(resolvedGroup))) {
return true;
}
}
}
return false;
}
/**
* Helper function to check whether the User to Group Addition mentions the specified Group
* @param node the CfnUserToGroupAddition to check
* @param groupLogicalId the Cfn Logical ID of the group
* @param groupName the name of the group
* returns whether the CfnUserToGroupAddition references the given group
*/
function isMatchingGroupAddition(node, groupLogicalId, groupName) {
const resolvedGroup = JSON.stringify(aws_cdk_lib_1.Stack.of(node).resolve(node.groupName));
if (new RegExp(`${groupLogicalId}(?![\\w])`).test(resolvedGroup) ||
(groupName != undefined &&
new RegExp(`${groupName}(?![\\w\\-_\\.])`).test(resolvedGroup))) {
return true;
}
return false;
}
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