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dontirun avatar dontirun commented on September 17, 2024 1

Hmm, for whatever reason it looks like the CDK is using a custom resource lambda to set the access policy rather than using the access policy property on the CloudFormation resource

It's technically possible (but messy) to check the custom resource.

This will need further research to address

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BrianFarnhill avatar BrianFarnhill commented on September 17, 2024 1

I've got this one happening too - it looks like the same issue is impacting on the OpenSearch Service domains only grant access via allowlisted IP addresses rule as it checks the access properties attribute as well.

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dontirun avatar dontirun commented on September 17, 2024 1

this should be resolved in version 2.22.16

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dontirun avatar dontirun commented on September 17, 2024

Do you mind sharing the CloudFormation generated for this resource?

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haandol avatar haandol commented on September 17, 2024

sure, here is the cfn.template.json.

{
  "Resources": {
    "SecurityGroupDD263621": {
      "Type": "AWS::EC2::SecurityGroup",
      "Properties": {
        "GroupDescription": "OpensearchStack/SecurityGroup",
        "GroupName": "OSTestDev",
        "SecurityGroupEgress": [
          {
            "CidrIp": "0.0.0.0/0",
            "Description": "Allow all outbound traffic by default",
            "IpProtocol": "-1"
          }
        ],
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ],
        "VpcId": "vpc-xxxxxxxxxx"
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/SecurityGroup/Resource"
      }
    },
    "SecurityGroupfromOpensearchStackSecurityGroupB321588E9200B5113157": {
      "Type": "AWS::EC2::SecurityGroupIngress",
      "Properties": {
        "IpProtocol": "tcp",
        "Description": "Allow access for internal",
        "FromPort": 9200,
        "GroupId": {
          "Fn::GetAtt": ["SecurityGroupDD263621", "GroupId"]
        },
        "SourceSecurityGroupId": {
          "Fn::GetAtt": ["SecurityGroupDD263621", "GroupId"]
        },
        "ToPort": 9200
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/SecurityGroup/from OpensearchStackSecurityGroupB321588E:9200"
      }
    },
    "FeaturestoreMasterUserA7B5B10F": {
      "Type": "AWS::SecretsManager::Secret",
      "Properties": {
        "GenerateSecretString": {
          "ExcludeCharacters": "{}'\\*[]()`",
          "GenerateStringKey": "password",
          "SecretStringTemplate": "{\"username\":\"admin\"}"
        },
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ]
      },
      "UpdateReplacePolicy": "Delete",
      "DeletionPolicy": "Delete",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/MasterUser/Resource"
      }
    },
    "FeaturestoreSlowSearchLogs52AF2A0E": {
      "Type": "AWS::Logs::LogGroup",
      "Properties": {
        "RetentionInDays": 30,
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ]
      },
      "UpdateReplacePolicy": "Retain",
      "DeletionPolicy": "Retain",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/SlowSearchLogs/Resource"
      }
    },
    "FeaturestoreAppLogs614CF09F": {
      "Type": "AWS::Logs::LogGroup",
      "Properties": {
        "RetentionInDays": 30,
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ]
      },
      "UpdateReplacePolicy": "Retain",
      "DeletionPolicy": "Retain",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/AppLogs/Resource"
      }
    },
    "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf337A22103": {
      "Type": "Custom::CloudwatchLogResourcePolicy",
      "Properties": {
        "ServiceToken": {
          "Fn::GetAtt": ["AWS679f53fac002430cb0da5b7982bd22872D164C4C", "Arn"]
        },
        "Create": {
          "Fn::Join": [
            "",
            [
              "{\"service\":\"CloudWatchLogs\",\"action\":\"putResourcePolicy\",\"parameters\":{\"policyName\":\"ESLogPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3\",\"policyDocument\":\"{\\\"Statement\\\":[{\\\"Action\\\":[\\\"logs:PutLogEvents\\\",\\\"logs:CreateLogStream\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"Service\\\":\\\"es.amazonaws.com\\\"},\\\"Resource\\\":[\\\"",
              {
                "Fn::GetAtt": ["FeaturestoreSlowSearchLogs52AF2A0E", "Arn"]
              },
              "\\\",\\\"",
              {
                "Fn::GetAtt": ["FeaturestoreAppLogs614CF09F", "Arn"]
              },
              "\\\"]}],\\\"Version\\\":\\\"2012-10-17\\\"}\"},\"physicalResourceId\":{\"id\":\"ESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3\"}}"
            ]
          ]
        },
        "Update": {
          "Fn::Join": [
            "",
            [
              "{\"service\":\"CloudWatchLogs\",\"action\":\"putResourcePolicy\",\"parameters\":{\"policyName\":\"ESLogPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3\",\"policyDocument\":\"{\\\"Statement\\\":[{\\\"Action\\\":[\\\"logs:PutLogEvents\\\",\\\"logs:CreateLogStream\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"Service\\\":\\\"es.amazonaws.com\\\"},\\\"Resource\\\":[\\\"",
              {
                "Fn::GetAtt": ["FeaturestoreSlowSearchLogs52AF2A0E", "Arn"]
              },
              "\\\",\\\"",
              {
                "Fn::GetAtt": ["FeaturestoreAppLogs614CF09F", "Arn"]
              },
              "\\\"]}],\\\"Version\\\":\\\"2012-10-17\\\"}\"},\"physicalResourceId\":{\"id\":\"ESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3\"}}"
            ]
          ]
        },
        "Delete": "{\"service\":\"CloudWatchLogs\",\"action\":\"deleteResourcePolicy\",\"parameters\":{\"policyName\":\"ESLogPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3\"},\"ignoreErrorCodesMatching\":\"ResourceNotFoundException\"}",
        "InstallLatestAwsSdk": false
      },
      "DependsOn": [
        "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3CustomResourcePolicyF2686B04"
      ],
      "UpdateReplacePolicy": "Delete",
      "DeletionPolicy": "Delete",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/ESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3/Resource/Default"
      }
    },
    "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3CustomResourcePolicyF2686B04": {
      "Type": "AWS::IAM::Policy",
      "Properties": {
        "PolicyDocument": {
          "Statement": [
            {
              "Action": ["logs:DeleteResourcePolicy", "logs:PutResourcePolicy"],
              "Effect": "Allow",
              "Resource": "*"
            }
          ],
          "Version": "2012-10-17"
        },
        "PolicyName": "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3CustomResourcePolicyF2686B04",
        "Roles": [
          {
            "Ref": "AWS679f53fac002430cb0da5b7982bd2287ServiceRoleC1EA0FF2"
          }
        ]
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/ESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3/CustomResourcePolicy/Resource"
      }
    },
    "FeaturestoreC553BC80": {
      "Type": "AWS::OpenSearchService::Domain",
      "Properties": {
        "AdvancedSecurityOptions": {
          "Enabled": true,
          "InternalUserDatabaseEnabled": true,
          "MasterUserOptions": {
            "MasterUserName": "admin",
            "MasterUserPassword": {
              "Fn::Join": [
                "",
                [
                  "{{resolve:secretsmanager:",
                  {
                    "Ref": "FeaturestoreMasterUserA7B5B10F"
                  },
                  ":SecretString:password::}}"
                ]
              ]
            }
          }
        },
        "ClusterConfig": {
          "DedicatedMasterEnabled": false,
          "InstanceCount": 1,
          "InstanceType": "r6g.large.search",
          "ZoneAwarenessEnabled": false
        },
        "DomainEndpointOptions": {
          "EnforceHTTPS": true,
          "TLSSecurityPolicy": "Policy-Min-TLS-1-0-2019-07"
        },
        "DomainName": "ostestdev-feature-store",
        "EBSOptions": {
          "EBSEnabled": true,
          "VolumeSize": 128,
          "VolumeType": "gp2"
        },
        "EncryptionAtRestOptions": {
          "Enabled": true
        },
        "EngineVersion": "OpenSearch_2.3",
        "LogPublishingOptions": {
          "ES_APPLICATION_LOGS": {
            "CloudWatchLogsLogGroupArn": {
              "Fn::GetAtt": ["FeaturestoreAppLogs614CF09F", "Arn"]
            },
            "Enabled": true
          },
          "SEARCH_SLOW_LOGS": {
            "CloudWatchLogsLogGroupArn": {
              "Fn::GetAtt": ["FeaturestoreSlowSearchLogs52AF2A0E", "Arn"]
            },
            "Enabled": true
          }
        },
        "NodeToNodeEncryptionOptions": {
          "Enabled": true
        },
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ],
        "VPCOptions": {
          "SecurityGroupIds": [
            {
              "Fn::GetAtt": ["SecurityGroupDD263621", "GroupId"]
            }
          ],
          "SubnetIds": ["subnet-061347620c70f94cd"]
        }
      },
      "DependsOn": [
        "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf3CustomResourcePolicyF2686B04",
        "FeaturestoreESLogGroupPolicyc8ae71755b6a4e8535be6d7a7fcf8050f03e7febf337A22103"
      ],
      "UpdateReplacePolicy": "Delete",
      "DeletionPolicy": "Delete",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/Resource",
        "cdk_nag": {
          "rules_to_suppress": [
            {
              "reason": "OpenSearch is not publicly accessible",
              "id": "AwsSolutions-OS5"
            }
          ]
        }
      }
    },
    "FeaturestoreAccessPolicyBAB12452": {
      "Type": "Custom::OpenSearchAccessPolicy",
      "Properties": {
        "ServiceToken": {
          "Fn::GetAtt": ["AWS679f53fac002430cb0da5b7982bd22872D164C4C", "Arn"]
        },
        "Create": {
          "Fn::Join": [
            "",
            [
              "{\"action\":\"updateDomainConfig\",\"service\":\"OpenSearch\",\"parameters\":{\"DomainName\":\"",
              {
                "Ref": "FeaturestoreC553BC80"
              },
              "\",\"AccessPolicies\":\"{\\\"Statement\\\":[{\\\"Action\\\":[\\\"es:ESHttpGet\\\",\\\"es:ESHttpPut\\\",\\\"es:ESHttpPost\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"AWS\\\":\\\"arn:",
              {
                "Ref": "AWS::Partition"
              },
              ":iam::",
              {
                "Ref": "AWS::AccountId"
              },
              ":root\\\"},\\\"Resource\\\":\\\"*\\\"},{\\\"Action\\\":[\\\"logs:PutLogEvents\\\",\\\"logs:CreateLogStream\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"Service\\\":\\\"es.amazonaws.com\\\"},\\\"Resource\\\":\\\"*\\\"}],\\\"Version\\\":\\\"2012-10-17\\\"}\"},\"outputPaths\":[\"DomainConfig.AccessPolicies\"],\"physicalResourceId\":{\"id\":\"",
              {
                "Ref": "FeaturestoreC553BC80"
              },
              "AccessPolicy\"}}"
            ]
          ]
        },
        "Update": {
          "Fn::Join": [
            "",
            [
              "{\"action\":\"updateDomainConfig\",\"service\":\"OpenSearch\",\"parameters\":{\"DomainName\":\"",
              {
                "Ref": "FeaturestoreC553BC80"
              },
              "\",\"AccessPolicies\":\"{\\\"Statement\\\":[{\\\"Action\\\":[\\\"es:ESHttpGet\\\",\\\"es:ESHttpPut\\\",\\\"es:ESHttpPost\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"AWS\\\":\\\"arn:",
              {
                "Ref": "AWS::Partition"
              },
              ":iam::",
              {
                "Ref": "AWS::AccountId"
              },
              ":root\\\"},\\\"Resource\\\":\\\"*\\\"},{\\\"Action\\\":[\\\"logs:PutLogEvents\\\",\\\"logs:CreateLogStream\\\"],\\\"Effect\\\":\\\"Allow\\\",\\\"Principal\\\":{\\\"Service\\\":\\\"es.amazonaws.com\\\"},\\\"Resource\\\":\\\"*\\\"}],\\\"Version\\\":\\\"2012-10-17\\\"}\"},\"outputPaths\":[\"DomainConfig.AccessPolicies\"],\"physicalResourceId\":{\"id\":\"",
              {
                "Ref": "FeaturestoreC553BC80"
              },
              "AccessPolicy\"}}"
            ]
          ]
        },
        "InstallLatestAwsSdk": false
      },
      "DependsOn": ["FeaturestoreAccessPolicyCustomResourcePolicy28188FE6"],
      "UpdateReplacePolicy": "Delete",
      "DeletionPolicy": "Delete",
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/AccessPolicy/Resource/Default"
      }
    },
    "FeaturestoreAccessPolicyCustomResourcePolicy28188FE6": {
      "Type": "AWS::IAM::Policy",
      "Properties": {
        "PolicyDocument": {
          "Statement": [
            {
              "Action": "es:UpdateDomainConfig",
              "Effect": "Allow",
              "Resource": {
                "Fn::GetAtt": ["FeaturestoreC553BC80", "Arn"]
              }
            }
          ],
          "Version": "2012-10-17"
        },
        "PolicyName": "FeaturestoreAccessPolicyCustomResourcePolicy28188FE6",
        "Roles": [
          {
            "Ref": "AWS679f53fac002430cb0da5b7982bd2287ServiceRoleC1EA0FF2"
          }
        ]
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/Featurestore/AccessPolicy/CustomResourcePolicy/Resource"
      }
    },
    "AWS679f53fac002430cb0da5b7982bd2287ServiceRoleC1EA0FF2": {
      "Type": "AWS::IAM::Role",
      "Properties": {
        "AssumeRolePolicyDocument": {
          "Statement": [
            {
              "Action": "sts:AssumeRole",
              "Effect": "Allow",
              "Principal": {
                "Service": "lambda.amazonaws.com"
              }
            }
          ],
          "Version": "2012-10-17"
        },
        "ManagedPolicyArns": [
          {
            "Fn::Join": [
              "",
              [
                "arn:",
                {
                  "Ref": "AWS::Partition"
                },
                ":iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
              ]
            ]
          }
        ],
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ]
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/AWS679f53fac002430cb0da5b7982bd2287/ServiceRole/Resource"
      }
    },
    "AWS679f53fac002430cb0da5b7982bd22872D164C4C": {
      "Type": "AWS::Lambda::Function",
      "Properties": {
        "Code": {
          "S3Bucket": {
            "Fn::Sub": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}"
          },
          "S3Key": "400f664767ec04a0966c8d688fa643ee8f6d0c94c8d91a71d3af814cc9b9e6ab.zip"
        },
        "Role": {
          "Fn::GetAtt": [
            "AWS679f53fac002430cb0da5b7982bd2287ServiceRoleC1EA0FF2",
            "Arn"
          ]
        },
        "Handler": "index.handler",
        "Runtime": "nodejs14.x",
        "Tags": [
          {
            "Key": "namespace",
            "Value": "OSTestDev"
          },
          {
            "Key": "stage",
            "Value": "Dev"
          }
        ],
        "Timeout": 120
      },
      "DependsOn": ["AWS679f53fac002430cb0da5b7982bd2287ServiceRoleC1EA0FF2"],
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/AWS679f53fac002430cb0da5b7982bd2287/Resource",
        "aws:asset:path": "asset.400f664767ec04a0966c8d688fa643ee8f6d0c94c8d91a71d3af814cc9b9e6ab",
        "aws:asset:is-bundled": false,
        "aws:asset:property": "Code"
      }
    },
    "CDKMetadata": {
      "Type": "AWS::CDK::Metadata",
      "Properties": {
        "Analytics": "v2:deflate64:H4sIAAAAAAAA/32Qz2rDMAzGn6V3xyMplF3XjJXBDiN7gOA6WuYmtoplt5SQd5+cf4cddtLv0ydLHy7kYS+LnbpTppsu681ZDl9B6U5wqx5AF6xBR2/C4+QxXkX57f5vvLvWA9Eo8AqOQHn9Q+BvRoMcXtEq49KTmUZBoD0EssqpFvx0jPWylGkUPbYkhw9st3Mrs6fsuVH8yri2h4DuLTodDDqxAc+vPAqjrBw+sTf6kYyFKuwhyVQ50b5WRJxJvqTCWh6j7iAcFbFdAWH0GoSOFNDWftE8fqdy6m0jfyWfWHnazT/dcvJklOgaM4d02IC80NMtP8j8Wea7CxmT+eiCsSCruf4CmltOobkBAAA="
      },
      "Metadata": {
        "aws:cdk:path": "OpensearchStack/CDKMetadata/Default"
      },
      "Condition": "CDKMetadataAvailable"
    }
  },
  "Conditions": {
    "CDKMetadataAvailable": {
      "Fn::Or": [
        {
          "Fn::Or": [
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "af-south-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-east-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-northeast-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-northeast-2"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-south-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-southeast-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ap-southeast-2"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "ca-central-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "cn-north-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "cn-northwest-1"
              ]
            }
          ]
        },
        {
          "Fn::Or": [
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-central-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-north-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-south-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-west-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-west-2"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "eu-west-3"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "me-south-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "sa-east-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "us-east-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "us-east-2"
              ]
            }
          ]
        },
        {
          "Fn::Or": [
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "us-west-1"
              ]
            },
            {
              "Fn::Equals": [
                {
                  "Ref": "AWS::Region"
                },
                "us-west-2"
              ]
            }
          ]
        }
      ]
    }
  },
  "Parameters": {
    "BootstrapVersion": {
      "Type": "AWS::SSM::Parameter::Value<String>",
      "Default": "/cdk-bootstrap/hnb659fds/version",
      "Description": "Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]"
    }
  },
  "Rules": {
    "CheckBootstrapVersion": {
      "Assertions": [
        {
          "Assert": {
            "Fn::Not": [
              {
                "Fn::Contains": [
                  ["1", "2", "3", "4", "5"],
                  {
                    "Ref": "BootstrapVersion"
                  }
                ]
              }
            ]
          },
          "AssertDescription": "CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI."
        }
      ]
    }
  }
}

from cdk-nag.

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