cdk-nag
Version:
Check CDK v2 applications for best practices using a combination on available rule packs.
108 lines • 14 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_s3_1 = require("aws-cdk-lib/aws-s3");
const nag_rules_1 = require("../../nag-rules");
/**
* S3 static website buckets do not have an open world bucket policy and use CloudFront Origin Access Identities in the bucket policy for limited getObject and/or putObject permissions
* @param node the CfnResource to check
*/
exports.default = Object.defineProperty((node) => {
if (node instanceof aws_s3_1.CfnBucket) {
if (node.websiteConfiguration !== undefined) {
const bucketLogicalId = nag_rules_1.NagRules.resolveResourceFromInstrinsic(node, node.ref);
const bucketName = aws_cdk_lib_1.Stack.of(node).resolve(node.bucketName);
let found = false;
for (const child of aws_cdk_lib_1.Stack.of(node).node.findAll()) {
if (child instanceof aws_s3_1.CfnBucketPolicy) {
if (isMatchingCompliantPolicy(child, bucketLogicalId, bucketName)) {
found = true;
}
}
}
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: path_1.parse(__filename).name });
/**
* Helper function to check whether the Bucket Policy does not allow for open access and uses a restricted OAI Policy for access on the given bucket.
* @param node The CfnBucketPolicy to check.
* @param bucketLogicalId The Cfn Logical ID of the bucket.
* @param bucketName The name of the bucket.
* @returns Whether the CfnBucketPolicy allows for open access on the given bucket.
*/
function isMatchingCompliantPolicy(node, bucketLogicalId, bucketName) {
const bucket = nag_rules_1.NagRules.resolveResourceFromInstrinsic(node, node.bucket);
if (bucket !== bucketLogicalId && bucket !== bucketName) {
return false;
}
const resolvedPolicyDocument = aws_cdk_lib_1.Stack.of(node).resolve(node.policyDocument);
let found = false;
for (const statement of resolvedPolicyDocument.Statement) {
const resolvedStatement = aws_cdk_lib_1.Stack.of(node).resolve(statement);
if (resolvedStatement.Effect === 'Allow') {
if (checkStarPrincipals(resolvedStatement.Principal)) {
return false;
}
if (checkOAIPrincipal(resolvedStatement.Principal)) {
if (checkMatchingActions(normalizeArray(resolvedStatement.Action))) {
found = true;
}
else {
return false;
}
}
}
}
return found;
}
/**
* Helper function to check whether the Bucket Policy applies to all principals
* @param node The CfnBucketPolicy to check
* @param principal The principals in the bucket policy
* @returns Whether the CfnBucketPolicy applies to all principals
*/
function checkStarPrincipals(principals) {
return JSON.stringify(principals ?? '').includes('*');
}
/**
* Helper function to check whether the Bucket Policy applies to a CloudFront OAI
* @param node The CfnBucketPolicy to check
* @param principal The principals in the bucket policy
* @returns Whether the CfnBucketPolicy applies to a CloudFront OAI
*/
function checkOAIPrincipal(principals) {
const usesAWSPrincipalOAI = JSON.stringify(principals.AWS ?? '').includes('CloudFront Origin Access Identity');
const usesCanonicalUserPrincipal = !!principals?.CanonicalUser;
return usesAWSPrincipalOAI || usesCanonicalUserPrincipal;
}
/**
* Helper function to check whether the statement applies to only GetObject and/or PutObject actions
* @param node The statement to check
* @param actions The action in the bucket statement
* @returns Whether the statement applies to only GetObject and/or PutObject actions
*/
function checkMatchingActions(actions) {
for (const action of actions) {
if (action.toLowerCase() !== 's3:getobject' &&
action.toLowerCase() !== 's3:putobject') {
return false;
}
}
return true;
}
function normalizeArray(arrOrStr) {
return Array.isArray(arrOrStr) ? arrOrStr : [arrOrStr];
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"S3WebBucketOAIAccess.js","sourceRoot":"","sources":["../../../src/rules/s3/S3WebBucketOAIAccess.ts"],"names":[],"mappings":";;AAAA;;;EAGE;AACF,+BAA6B;AAC7B,6CAAiD;AACjD,+CAAgE;AAChE,+CAA8D;AAE9D;;;GAGG;AACH,kBAAe,MAAM,CAAC,cAAc,CAClC,CAAC,IAAiB,EAAqB,EAAE;IACvC,IAAI,IAAI,YAAY,kBAAS,EAAE;QAC7B,IAAI,IAAI,CAAC,oBAAoB,KAAK,SAAS,EAAE;YAC3C,MAAM,eAAe,GAAG,oBAAQ,CAAC,6BAA6B,CAC5D,IAAI,EACJ,IAAI,CAAC,GAAG,CACT,CAAC;YACF,MAAM,UAAU,GAAG,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;YAC3D,IAAI,KAAK,GAAG,KAAK,CAAC;YAClB,KAAK,MAAM,KAAK,IAAI,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,IAAI,CAAC,OAAO,EAAE,EAAE;gBACjD,IAAI,KAAK,YAAY,wBAAe,EAAE;oBACpC,IAAI,yBAAyB,CAAC,KAAK,EAAE,eAAe,EAAE,UAAU,CAAC,EAAE;wBACjE,KAAK,GAAG,IAAI,CAAC;qBACd;iBACF;aACF;YACD,IAAI,CAAC,KAAK,EAAE;gBACV,OAAO,6BAAiB,CAAC,aAAa,CAAC;aACxC;SACF;QACD,OAAO,6BAAiB,CAAC,SAAS,CAAC;KACpC;SAAM;QACL,OAAO,6BAAiB,CAAC,cAAc,CAAC;KACzC;AACH,CAAC,EACD,MAAM,EACN,EAAE,KAAK,EAAE,YAAK,CAAC,UAAU,CAAC,CAAC,IAAI,EAAE,CAClC,CAAC;AAEF;;;;;;GAMG;AACH,SAAS,yBAAyB,CAChC,IAAqB,EACrB,eAAuB,EACvB,UAA8B;IAE9B,MAAM,MAAM,GAAG,oBAAQ,CAAC,6BAA6B,CAAC,IAAI,EAAE,IAAI,CAAC,MAAM,CAAC,CAAC;IACzE,IAAI,MAAM,KAAK,eAAe,IAAI,MAAM,KAAK,UAAU,EAAE;QACvD,OAAO,KAAK,CAAC;KACd;IACD,MAAM,sBAAsB,GAAG,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,cAAc,CAAC,CAAC;IAC3E,IAAI,KAAK,GAAG,KAAK,CAAC;IAClB,KAAK,MAAM,SAAS,IAAI,sBAAsB,CAAC,SAAS,EAAE;QACxD,MAAM,iBAAiB,GAAG,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC;QAC5D,IAAI,iBAAiB,CAAC,MAAM,KAAK,OAAO,EAAE;YACxC,IAAI,mBAAmB,CAAC,iBAAiB,CAAC,SAAS,CAAC,EAAE;gBACpD,OAAO,KAAK,CAAC;aACd;YACD,IAAI,iBAAiB,CAAC,iBAAiB,CAAC,SAAS,CAAC,EAAE;gBAClD,IAAI,oBAAoB,CAAC,cAAc,CAAC,iBAAiB,CAAC,MAAM,CAAC,CAAC,EAAE;oBAClE,KAAK,GAAG,IAAI,CAAC;iBACd;qBAAM;oBACL,OAAO,KAAK,CAAC;iBACd;aACF;SACF;KACF;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED;;;;;GAKG;AACH,SAAS,mBAAmB,CAAC,UAAe;IAC1C,OAAO,IAAI,CAAC,SAAS,CAAC,UAAU,IAAI,EAAE,CAAC,CAAC,QAAQ,CAAC,GAAG,CAAC,CAAC;AACxD,CAAC;AAED;;;;;GAKG;AACH,SAAS,iBAAiB,CAAC,UAAe;IACxC,MAAM,mBAAmB,GAAG,IAAI,CAAC,SAAS,CAAC,UAAU,CAAC,GAAG,IAAI,EAAE,CAAC,CAAC,QAAQ,CACvE,mCAAmC,CACpC,CAAC;IACF,MAAM,0BAA0B,GAAG,CAAC,CAAC,UAAU,EAAE,aAAa,CAAC;IAC/D,OAAO,mBAAmB,IAAI,0BAA0B,CAAC;AAC3D,CAAC;AAED;;;;;GAKG;AACH,SAAS,oBAAoB,CAAC,OAAiB;IAC7C,KAAK,MAAM,MAAM,IAAI,OAAO,EAAE;QAC5B,IACE,MAAM,CAAC,WAAW,EAAE,KAAK,cAAc;YACvC,MAAM,CAAC,WAAW,EAAE,KAAK,cAAc,EACvC;YACA,OAAO,KAAK,CAAC;SACd;KACF;IACD,OAAO,IAAI,CAAC;AACd,CAAC;AAED,SAAS,cAAc,CAAI,QAAiB;IAC1C,OAAO,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC;AACzD,CAAC","sourcesContent":["/*\nCopyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\nSPDX-License-Identifier: Apache-2.0\n*/\nimport { parse } from 'path';\nimport { CfnResource, Stack } from 'aws-cdk-lib';\nimport { CfnBucket, CfnBucketPolicy } from 'aws-cdk-lib/aws-s3';\nimport { NagRuleCompliance, NagRules } from '../../nag-rules';\n\n/**\n * S3 static website buckets do not have an open world bucket policy and use CloudFront Origin Access Identities in the bucket policy for limited getObject and/or putObject permissions\n * @param node the CfnResource to check\n */\nexport default Object.defineProperty(\n  (node: CfnResource): NagRuleCompliance => {\n    if (node instanceof CfnBucket) {\n      if (node.websiteConfiguration !== undefined) {\n        const bucketLogicalId = NagRules.resolveResourceFromInstrinsic(\n          node,\n          node.ref\n        );\n        const bucketName = Stack.of(node).resolve(node.bucketName);\n        let found = false;\n        for (const child of Stack.of(node).node.findAll()) {\n          if (child instanceof CfnBucketPolicy) {\n            if (isMatchingCompliantPolicy(child, bucketLogicalId, bucketName)) {\n              found = true;\n            }\n          }\n        }\n        if (!found) {\n          return NagRuleCompliance.NON_COMPLIANT;\n        }\n      }\n      return NagRuleCompliance.COMPLIANT;\n    } else {\n      return NagRuleCompliance.NOT_APPLICABLE;\n    }\n  },\n  'name',\n  { value: parse(__filename).name }\n);\n\n/**\n * Helper function to check whether the Bucket Policy does not allow for open access  and uses a restricted OAI Policy for access on the given bucket.\n * @param node The CfnBucketPolicy to check.\n * @param bucketLogicalId The Cfn Logical ID of the bucket.\n * @param bucketName The name of the bucket.\n * @returns Whether the CfnBucketPolicy allows for open access on the given bucket.\n */\nfunction isMatchingCompliantPolicy(\n  node: CfnBucketPolicy,\n  bucketLogicalId: string,\n  bucketName: string | undefined\n): boolean {\n  const bucket = NagRules.resolveResourceFromInstrinsic(node, node.bucket);\n  if (bucket !== bucketLogicalId && bucket !== bucketName) {\n    return false;\n  }\n  const resolvedPolicyDocument = Stack.of(node).resolve(node.policyDocument);\n  let found = false;\n  for (const statement of resolvedPolicyDocument.Statement) {\n    const resolvedStatement = Stack.of(node).resolve(statement);\n    if (resolvedStatement.Effect === 'Allow') {\n      if (checkStarPrincipals(resolvedStatement.Principal)) {\n        return false;\n      }\n      if (checkOAIPrincipal(resolvedStatement.Principal)) {\n        if (checkMatchingActions(normalizeArray(resolvedStatement.Action))) {\n          found = true;\n        } else {\n          return false;\n        }\n      }\n    }\n  }\n  return found;\n}\n\n/**\n * Helper function to check whether the Bucket Policy applies to all principals\n * @param node The CfnBucketPolicy to check\n * @param principal The principals in the bucket policy\n * @returns Whether the CfnBucketPolicy applies to all principals\n */\nfunction checkStarPrincipals(principals: any): boolean {\n  return JSON.stringify(principals ?? '').includes('*');\n}\n\n/**\n * Helper function to check whether the Bucket Policy applies to a CloudFront OAI\n * @param node The CfnBucketPolicy to check\n * @param principal The principals in the bucket policy\n * @returns Whether the CfnBucketPolicy applies to a CloudFront OAI\n */\nfunction checkOAIPrincipal(principals: any): boolean {\n  const usesAWSPrincipalOAI = JSON.stringify(principals.AWS ?? '').includes(\n    'CloudFront Origin Access Identity'\n  );\n  const usesCanonicalUserPrincipal = !!principals?.CanonicalUser;\n  return usesAWSPrincipalOAI || usesCanonicalUserPrincipal;\n}\n\n/**\n * Helper function to check whether the statement applies to only GetObject and/or PutObject actions\n * @param node The statement to check\n * @param actions The action in the bucket statement\n * @returns Whether the statement applies to only GetObject and/or PutObject actions\n */\nfunction checkMatchingActions(actions: string[]): boolean {\n  for (const action of actions) {\n    if (\n      action.toLowerCase() !== 's3:getobject' &&\n      action.toLowerCase() !== 's3:putobject'\n    ) {\n      return false;\n    }\n  }\n  return true;\n}\n\nfunction normalizeArray<T>(arrOrStr: T[] | T): T[] {\n  return Array.isArray(arrOrStr) ? arrOrStr : [arrOrStr];\n}\n"]}