AWSIoTDeviceTesterForFreeRTOSFullAccess

Last Modified

Mar 12, 2026

March 12, 2026 at 09:26 PM UTC

Version

Total Versions

Created

Aug 10, 2023

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Risk

High

An unrestricted escalation path, identity administration, secret reads or the power to switch off security monitoring. Read from this policy document alone: trust policies, boundaries and SCPs in your account still decide what actually succeeds. How this is assessed

High
Can read secrets
Reads Parameter Store values, SecureString included where the KMS key allows it, on any resource with no condition.
ssm:GetParameters
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 launch resources that run as a more privileged role
Grants the actions of 1 documented escalation path, but only on named resources or under a condition. Review that scope before trusting it.
- ec2-001iam:PassRole + ec2:RunInstancesscoped
  - iam:PassRole: condition iam:PassedToService, on arn:aws:iam::*:role/idt-*
Use with caution: Check which roles, users or policies fall inside the scope shown above. Within it the escalation works as documented, so keep privileged principals out of it.
Medium
Can rewrite resource policies and sharing
Grants 4 permissions management actions across 1 service (iot) on any resource, enough to share resources outside the account.
iot:attachpolicyiot:createpolicyiot:deletepolicyiot:detachpolicy
Use with caution: Turn on IAM Access Analyzer external access findings, and keep account-level guards like S3 Block Public Access enabled.

Policy Document

View on GitHub

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271{
  "PolicyVersion": {
    "Document": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Sid": "VisualEditor0",
          "Effect": "Allow",
          "Action": "iam:PassRole",
          "Resource": "arn:aws:iam::*:role/idt-*",
          "Condition": {
            "StringEquals": {
              "iam:PassedToService": "iot.amazonaws.com"
            }
          }
        },
        {
          "Sid": "VisualEditor1",
          "Effect": "Allow",
          "Action": [
            "iot:DeleteThing",
            "iot:AttachThingPrincipal",
            "iot:DeleteCertificate",
            "iot:GetRegistrationCode",
            "iot:CreatePolicy",
            "iot:UpdateCACertificate",
            "s3:ListBucket",
            "iot:DescribeEndpoint",
            "iot:CreateOTAUpdate",
            "iot:CreateStream",
            "signer:ListSigningJobs",
            "acm:ListCertificates",
            "iot:CreateKeysAndCertificate",
            "iot:UpdateCertificate",
            "iot:CreateCertificateFromCsr",
            "iot:DetachThingPrincipal",
            "iot:RegisterCACertificate",
            "iot:CreateThing",
            "iam:ListRoles",
            "iot:RegisterCertificate",
            "iot:DeleteCACertificate",
            "signer:PutSigningProfile",
            "s3:ListAllMyBuckets",
            "signer:ListSigningPlatforms",
            "iot-device-tester:SendMetrics",
            "iot-device-tester:SupportedVersion",
            "iot-device-tester:LatestIdt",
            "iot-device-tester:CheckVersion",
            "iot-device-tester:DownloadTestSuite"
          ],
          "Resource": "*"
        },
        {
          "Sid": "VisualEditor2",
          "Effect": "Allow",
          "Action": [
            "iam:GetRole",
            "signer:StartSigningJob",
            "acm:GetCertificate",
            "signer:DescribeSigningJob",
            "s3:CreateBucket",
            "execute-api:Invoke",
            "s3:DeleteBucket",
            "s3:PutBucketVersioning",
            "signer:CancelSigningProfile"
          ],
          "Resource": [
            "arn:aws:execute-api:us-east-1:098862408343:9xpmnvs5h4/prod/POST/metrics",
            "arn:aws:signer:*:*:/signing-profiles/*",
            "arn:aws:signer:*:*:/signing-jobs/*",
            "arn:aws:iam::*:role/idt-*",
            "arn:aws:acm:*:*:certificate/*",
            "arn:aws:s3:::idt-*",
            "arn:aws:s3:::afr-ota*"
          ]
        },
        {
          "Sid": "VisualEditor3",
          "Effect": "Allow",
          "Action": [
            "iot:DeleteStream",
            "iot:DeleteCertificate",
            "iot:AttachPolicy",
            "iot:DetachPolicy",
            "iot:DeletePolicy",
            "s3:ListBucketVersions",
            "iot:UpdateCertificate",
            "iot:GetOTAUpdate",
            "iot:DeleteOTAUpdate",
            "iot:DescribeJobExecution"
          ],
          "Resource": [
            "arn:aws:s3:::afr-ota*",
            "arn:aws:iot:*:*:thinggroup/idt*",
            "arn:aws:iam::*:role/idt-*"
          ]
        },
        {
          "Sid": "VisualEditor4",
          "Effect": "Allow",
          "Action": [
            "iot:DeleteCertificate",
            "iot:AttachPolicy",
            "iot:DetachPolicy",
            "s3:DeleteObjectVersion",
            "iot:DeleteOTAUpdate",
            "s3:PutObject",
            "s3:GetObject",
            "iot:DeleteStream",
            "iot:DeletePolicy",
            "s3:DeleteObject",
            "iot:UpdateCertificate",
            "iot:GetOTAUpdate",
            "s3:GetObjectVersion",
            "iot:DescribeJobExecution"
          ],
          "Resource": [
            "arn:aws:s3:::afr-ota*/*",
            "arn:aws:s3:::idt-*/*",
            "arn:aws:iot:*:*:policy/idt*",
            "arn:aws:iam::*:role/idt-*",
            "arn:aws:iot:*:*:otaupdate/idt*",
            "arn:aws:iot:*:*:thing/idt*",
            "arn:aws:iot:*:*:cert/*",
            "arn:aws:iot:*:*:job/*",
            "arn:aws:iot:*:*:stream/*"
          ]
        },
        {
          "Sid": "VisualEditor5",
          "Effect": "Allow",
          "Action": [
            "s3:PutObject",
            "s3:GetObject"
          ],
          "Resource": [
            "arn:aws:s3:::afr-ota*/*",
            "arn:aws:s3:::idt-*/*"
          ]
        },
        {
          "Sid": "VisualEditor6",
          "Effect": "Allow",
          "Action": [
            "iot:CancelJobExecution"
          ],
          "Resource": [
            "arn:aws:iot:*:*:job/*",
            "arn:aws:iot:*:*:thing/idt*"
          ]
        },
        {
          "Sid": "VisualEditor7",
          "Effect": "Allow",
          "Action": [
            "ec2:TerminateInstances"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:instance/*"
          ],
          "Condition": {
            "StringEquals": {
              "ec2:ResourceTag/Owner": "IoTDeviceTester"
            }
          }
        },
        {
          "Sid": "VisualEditor8",
          "Effect": "Allow",
          "Action": [
            "ec2:AuthorizeSecurityGroupIngress",
            "ec2:DeleteSecurityGroup"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:security-group/*"
          ],
          "Condition": {
            "StringEquals": {
              "ec2:ResourceTag/Owner": "IoTDeviceTester"
            }
          }
        },
        {
          "Sid": "VisualEditor9",
          "Effect": "Allow",
          "Action": [
            "ec2:RunInstances"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:instance/*"
          ],
          "Condition": {
            "StringEquals": {
              "aws:RequestTag/Owner": "IoTDeviceTester"
            }
          }
        },
        {
          "Sid": "VisualEditor10",
          "Effect": "Allow",
          "Action": [
            "ec2:RunInstances"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:image/*",
            "arn:aws:ec2:*:*:security-group/*",
            "arn:aws:ec2:*:*:volume/*",
            "arn:aws:ec2:*:*:key-pair/*",
            "arn:aws:ec2:*:*:placement-group/*",
            "arn:aws:ec2:*:*:snapshot/*",
            "arn:aws:ec2:*:*:network-interface/*",
            "arn:aws:ec2:*:*:subnet/*"
          ]
        },
        {
          "Sid": "VisualEditor11",
          "Effect": "Allow",
          "Action": [
            "ec2:CreateSecurityGroup"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:security-group/*"
          ],
          "Condition": {
            "StringEquals": {
              "aws:RequestTag/Owner": "IoTDeviceTester"
            }
          }
        },
        {
          "Sid": "VisualEditor12",
          "Effect": "Allow",
          "Action": [
            "ec2:DescribeInstances",
            "ec2:DescribeSecurityGroups",
            "ssm:DescribeParameters",
            "ssm:GetParameters"
          ],
          "Resource": "*"
        },
        {
          "Sid": "VisualEditor13",
          "Effect": "Allow",
          "Action": [
            "ec2:CreateTags"
          ],
          "Resource": [
            "arn:aws:ec2:*:*:security-group/*",
            "arn:aws:ec2:*:*:instance/*"
          ],
          "Condition": {
            "ForAnyValue:StringEquals": {
              "aws:TagKeys": [
                "Owner"
              ]
            },
            "StringEquals": {
              "ec2:CreateAction": [
                "RunInstances",
                "CreateSecurityGroup"
              ]
            }
          }
        }
      ]
    },
    "VersionId": "v7",
    "IsDefaultVersion": true,
    "CreateDate": "2023-08-10T20:30:07+00:00"
  }
}