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cdk-nag

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Check CDK v2 applications for best practices using a combination on available rule packs.

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"use strict"; 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_ec2_1 = require("aws-cdk-lib/aws-ec2"); const nag_rules_1 = require("../../nag-rules"); /** * Security Groups do not allow for unrestricted SSH traffic * @param node the CfnResource to check */ exports.default = Object.defineProperty((node) => { if (node instanceof aws_ec2_1.CfnSecurityGroup) { const ingressRules = aws_cdk_lib_1.Stack.of(node).resolve(node.securityGroupIngress); if (ingressRules != undefined) { //For each ingress rule, ensure that it does not allow unrestricted SSH traffic. for (const rule of ingressRules) { const resolvedRule = aws_cdk_lib_1.Stack.of(node).resolve(rule); const ipProtocol = nag_rules_1.NagRules.resolveIfPrimitive(node, resolvedRule.ipProtocol); const cidrIp = nag_rules_1.NagRules.resolveIfPrimitive(node, resolvedRule.cidrIp); const cidrIpv6 = nag_rules_1.NagRules.resolveIfPrimitive(node, resolvedRule.cidrIpv6); const fromPort = nag_rules_1.NagRules.resolveIfPrimitive(node, resolvedRule.fromPort); const toPort = nag_rules_1.NagRules.resolveIfPrimitive(node, resolvedRule.toPort); if ((cidrIp != undefined && cidrIp.includes('/0')) || (cidrIpv6 != undefined && cidrIpv6.includes('/0'))) { if (fromPort != undefined && toPort != undefined) { if ((fromPort <= 22 && toPort >= 22) || fromPort == -1 || toPort == -1 || ipProtocol == '-1') { return nag_rules_1.NagRuleCompliance.NON_COMPLIANT; } } else { if (fromPort == 22 || ipProtocol == '-1') { return nag_rules_1.NagRuleCompliance.NON_COMPLIANT; } } } } } return nag_rules_1.NagRuleCompliance.COMPLIANT; } else if (node instanceof aws_ec2_1.CfnSecurityGroupIngress) { const ipProtocol = nag_rules_1.NagRules.resolveIfPrimitive(node, node.ipProtocol); const cidrIp = nag_rules_1.NagRules.resolveIfPrimitive(node, node.cidrIp); const cidrIpv6 = nag_rules_1.NagRules.resolveIfPrimitive(node, node.cidrIpv6); const fromPort = nag_rules_1.NagRules.resolveIfPrimitive(node, node.fromPort); const toPort = nag_rules_1.NagRules.resolveIfPrimitive(node, node.toPort); if ((cidrIp != undefined && cidrIp.includes('/0')) || (cidrIpv6 != undefined && cidrIpv6.includes('/0'))) { //Is a port range specified? if (fromPort != undefined && toPort != undefined) { if ((fromPort <= 22 && toPort >= 22) || fromPort == -1 || toPort == -1 || ipProtocol == '-1') { return nag_rules_1.NagRuleCompliance.NON_COMPLIANT; } } else { if (fromPort == 22 || ipProtocol == '-1') { 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 }); //# sourceMappingURL=data:application/json;base64,{"version":3,"file":"EC2RestrictedSSH.js","sourceRoot":"","sources":["../../../src/rules/ec2/EC2RestrictedSSH.ts"],"names":[],"mappings":";;AAAA;;;EAGE;AACF,+BAA6B;AAC7B,6CAAiD;AACjD,iDAAgF;AAChF,+CAA8D;AAE9D;;;GAGG;AACH,kBAAe,MAAM,CAAC,cAAc,CAClC,CAAC,IAAiB,EAAqB,EAAE;IACvC,IAAI,IAAI,YAAY,0BAAgB,EAAE,CAAC;QACrC,MAAM,YAAY,GAAG,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,oBAAoB,CAAC,CAAC;QACvE,IAAI,YAAY,IAAI,SAAS,EAAE,CAAC;YAC9B,gFAAgF;YAChF,KAAK,MAAM,IAAI,IAAI,YAAY,EAAE,CAAC;gBAChC,MAAM,YAAY,GAAG,mBAAK,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,CAAC;gBAClD,MAAM,UAAU,GAAG,oBAAQ,CAAC,kBAAkB,CAC5C,IAAI,EACJ,YAAY,CAAC,UAAU,CACxB,CAAC;gBACF,MAAM,MAAM,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,YAAY,CAAC,MAAM,CAAC,CAAC;gBACtE,MAAM,QAAQ,GAAG,oBAAQ,CAAC,kBAAkB,CAC1C,IAAI,EACJ,YAAY,CAAC,QAAQ,CACtB,CAAC;gBACF,MAAM,QAAQ,GAAG,oBAAQ,CAAC,kBAAkB,CAC1C,IAAI,EACJ,YAAY,CAAC,QAAQ,CACtB,CAAC;gBACF,MAAM,MAAM,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,YAAY,CAAC,MAAM,CAAC,CAAC;gBACtE,IACE,CAAC,MAAM,IAAI,SAAS,IAAI,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC;oBAC9C,CAAC,QAAQ,IAAI,SAAS,IAAI,QAAQ,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC,EAClD,CAAC;oBACD,IAAI,QAAQ,IAAI,SAAS,IAAI,MAAM,IAAI,SAAS,EAAE,CAAC;wBACjD,IACE,CAAC,QAAQ,IAAI,EAAE,IAAI,MAAM,IAAI,EAAE,CAAC;4BAChC,QAAQ,IAAI,CAAC,CAAC;4BACd,MAAM,IAAI,CAAC,CAAC;4BACZ,UAAU,IAAI,IAAI,EAClB,CAAC;4BACD,OAAO,6BAAiB,CAAC,aAAa,CAAC;wBACzC,CAAC;oBACH,CAAC;yBAAM,CAAC;wBACN,IAAI,QAAQ,IAAI,EAAE,IAAI,UAAU,IAAI,IAAI,EAAE,CAAC;4BACzC,OAAO,6BAAiB,CAAC,aAAa,CAAC;wBACzC,CAAC;oBACH,CAAC;gBACH,CAAC;YACH,CAAC;QACH,CAAC;QACD,OAAO,6BAAiB,CAAC,SAAS,CAAC;IACrC,CAAC;SAAM,IAAI,IAAI,YAAY,iCAAuB,EAAE,CAAC;QACnD,MAAM,UAAU,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,IAAI,CAAC,UAAU,CAAC,CAAC;QACtE,MAAM,MAAM,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,IAAI,CAAC,MAAM,CAAC,CAAC;QAC9D,MAAM,QAAQ,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;QAClE,MAAM,QAAQ,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;QAClE,MAAM,MAAM,GAAG,oBAAQ,CAAC,kBAAkB,CAAC,IAAI,EAAE,IAAI,CAAC,MAAM,CAAC,CAAC;QAC9D,IACE,CAAC,MAAM,IAAI,SAAS,IAAI,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC;YAC9C,CAAC,QAAQ,IAAI,SAAS,IAAI,QAAQ,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC,EAClD,CAAC;YACD,4BAA4B;YAC5B,IAAI,QAAQ,IAAI,SAAS,IAAI,MAAM,IAAI,SAAS,EAAE,CAAC;gBACjD,IACE,CAAC,QAAQ,IAAI,EAAE,IAAI,MAAM,IAAI,EAAE,CAAC;oBAChC,QAAQ,IAAI,CAAC,CAAC;oBACd,MAAM,IAAI,CAAC,CAAC;oBACZ,UAAU,IAAI,IAAI,EAClB,CAAC;oBACD,OAAO,6BAAiB,CAAC,aAAa,CAAC;gBACzC,CAAC;YACH,CAAC;iBAAM,CAAC;gBACN,IAAI,QAAQ,IAAI,EAAE,IAAI,UAAU,IAAI,IAAI,EAAE,CAAC;oBACzC,OAAO,6BAAiB,CAAC,aAAa,CAAC;gBACzC,CAAC;YACH,CAAC;QACH,CAAC;QACD,OAAO,6BAAiB,CAAC,SAAS,CAAC;IACrC,CAAC;SAAM,CAAC;QACN,OAAO,6BAAiB,CAAC,cAAc,CAAC;IAC1C,CAAC;AACH,CAAC,EACD,MAAM,EACN,EAAE,KAAK,EAAE,IAAA,YAAK,EAAC,UAAU,CAAC,CAAC,IAAI,EAAE,CAClC,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 { CfnSecurityGroupIngress, CfnSecurityGroup } from 'aws-cdk-lib/aws-ec2';\nimport { NagRuleCompliance, NagRules } from '../../nag-rules';\n\n/**\n * Security Groups do not allow for unrestricted SSH traffic\n * @param node the CfnResource to check\n */\nexport default Object.defineProperty(\n  (node: CfnResource): NagRuleCompliance => {\n    if (node instanceof CfnSecurityGroup) {\n      const ingressRules = Stack.of(node).resolve(node.securityGroupIngress);\n      if (ingressRules != undefined) {\n        //For each ingress rule, ensure that it does not allow unrestricted SSH traffic.\n        for (const rule of ingressRules) {\n          const resolvedRule = Stack.of(node).resolve(rule);\n          const ipProtocol = NagRules.resolveIfPrimitive(\n            node,\n            resolvedRule.ipProtocol\n          );\n          const cidrIp = NagRules.resolveIfPrimitive(node, resolvedRule.cidrIp);\n          const cidrIpv6 = NagRules.resolveIfPrimitive(\n            node,\n            resolvedRule.cidrIpv6\n          );\n          const fromPort = NagRules.resolveIfPrimitive(\n            node,\n            resolvedRule.fromPort\n          );\n          const toPort = NagRules.resolveIfPrimitive(node, resolvedRule.toPort);\n          if (\n            (cidrIp != undefined && cidrIp.includes('/0')) ||\n            (cidrIpv6 != undefined && cidrIpv6.includes('/0'))\n          ) {\n            if (fromPort != undefined && toPort != undefined) {\n              if (\n                (fromPort <= 22 && toPort >= 22) ||\n                fromPort == -1 ||\n                toPort == -1 ||\n                ipProtocol == '-1'\n              ) {\n                return NagRuleCompliance.NON_COMPLIANT;\n              }\n            } else {\n              if (fromPort == 22 || ipProtocol == '-1') {\n                return NagRuleCompliance.NON_COMPLIANT;\n              }\n            }\n          }\n        }\n      }\n      return NagRuleCompliance.COMPLIANT;\n    } else if (node instanceof CfnSecurityGroupIngress) {\n      const ipProtocol = NagRules.resolveIfPrimitive(node, node.ipProtocol);\n      const cidrIp = NagRules.resolveIfPrimitive(node, node.cidrIp);\n      const cidrIpv6 = NagRules.resolveIfPrimitive(node, node.cidrIpv6);\n      const fromPort = NagRules.resolveIfPrimitive(node, node.fromPort);\n      const toPort = NagRules.resolveIfPrimitive(node, node.toPort);\n      if (\n        (cidrIp != undefined && cidrIp.includes('/0')) ||\n        (cidrIpv6 != undefined && cidrIpv6.includes('/0'))\n      ) {\n        //Is a port range specified?\n        if (fromPort != undefined && toPort != undefined) {\n          if (\n            (fromPort <= 22 && toPort >= 22) ||\n            fromPort == -1 ||\n            toPort == -1 ||\n            ipProtocol == '-1'\n          ) {\n            return NagRuleCompliance.NON_COMPLIANT;\n          }\n        } else {\n          if (fromPort == 22 || ipProtocol == '-1') {\n            return NagRuleCompliance.NON_COMPLIANT;\n          }\n        }\n      }\n      return NagRuleCompliance.COMPLIANT;\n    } else {\n      return NagRuleCompliance.NOT_APPLICABLE;\n    }\n  },\n  'name',\n  { value: parse(__filename).name }\n);\n"]}