AWSLambdaReadOnlyAccess

Last Modified

Sep 16, 2019

September 16, 2019 at 03:19 PM UTC

Version

Total Versions

Created

Sep 6, 2018

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Risk

Medium

The same capabilities in a scoped form, resource policy writes, reads across all data, or full access to a whole service. Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

Medium
Can read secrets
Reads Lambda environment variables, where credentials often live, on any resource with no condition.
lambda:GetFunctionConfiguration (via lambda:Get*)
Use with caution: Where the holder needs only some secrets, write your own policy scoped to their ARNs or tags, and limit decryption in the KMS key policies.
Medium
Can read data in every bucket or table
Reads any object in any S3 bucket; any DynamoDB table. Read-only is not the same as harmless when the data is the asset.
s3:GetObject (via s3:Get*)dynamodb:Scandynamodb:GetItem
Use with caution: Read access to data is still access to data. For people who only need to see configuration, ViewOnlyAccess carries none of these signals.

Policy Document

View on GitHub

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69{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "cloudformation:DescribeChangeSet",
            "cloudformation:DescribeStackResources",
            "cloudformation:DescribeStacks",
            "cloudformation:GetTemplate",
            "cloudformation:ListStackResources",
            "cloudwatch:Describe*",
            "cloudwatch:Get*",
            "cloudwatch:List*",
            "cognito-identity:ListIdentityPools",
            "cognito-sync:GetCognitoEvents",
            "dynamodb:BatchGetItem",
            "dynamodb:DescribeStream",
            "dynamodb:DescribeTable",
            "dynamodb:GetItem",
            "dynamodb:ListStreams",
            "dynamodb:ListTables",
            "dynamodb:Query",
            "dynamodb:Scan",
            "ec2:DescribeSecurityGroups",
            "ec2:DescribeSubnets",
            "ec2:DescribeVpcs",
            "events:Describe*",
            "events:List*",
            "iam:GetPolicy",
            "iam:GetPolicyVersion",
            "iam:GetRole",
            "iam:GetRolePolicy",
            "iam:ListAttachedRolePolicies",
            "iam:ListRolePolicies",
            "iam:ListRoles",
            "iot:DescribeEndpoint",
            "iot:GetTopicRule",
            "iot:ListPolicies",
            "iot:ListThings",
            "iot:ListTopicRules",
            "kinesis:DescribeStream",
            "kinesis:ListStreams",
            "kms:ListAliases",
            "lambda:Get*",
            "lambda:List*",
            "logs:DescribeLogGroups",
            "logs:DescribeLogStreams",
            "logs:DescribeMetricFilters",
            "logs:GetLogEvents",
            "s3:Get*",
            "s3:List*",
            "sns:ListSubscriptions",
            "sns:ListSubscriptionsByTopic",
            "sns:ListTopics",
            "sqs:ListQueues",
            "tag:GetResources"
          ],
          "Resource": "*"
        }
      ]
    },
    "VersionId": "v8",
    "IsDefaultVersion": true,
    "CreateDate": "2018-09-06T18:04:54Z"
  }
}