CVE-2023-35165

AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. In the packages `aws-cdk-lib` 2.0.0 until 2.80.0 and `@aws-cdk/aws-eks` 1.57.0 until 1.202.0, `eks.Cluster` and `eks.FargateCluster` constructs create two roles, `CreationRole` and `default MastersRole`, that have an overly permissive trust policy. The first, referred to as the `CreationRole`, is used by lambda handlers to create the cluster and deploy Kubernetes resources (e.g `KubernetesManifest`, `HelmChart`, ...) onto it. Users with CDK version higher or equal to 1.62.0 (including v2 users) may be affected. The second, referred to as the `default MastersRole`, is provisioned only if the `mastersRole` property isn't provided and has permissions to execute `kubectl` commands on the cluster. Users with CDK version higher or equal to 1.57.0 (including v2 users) may be affected. The issue has been fixed in `@aws-cdk/aws-eks` v1.202.0 and `aws-cdk-lib` v2.80.0. These versions no longer use the account root principal. Instead, they restrict the trust policy to the specific roles of lambda handlers that need it. There is no workaround available for CreationRole. To avoid creating the `default MastersRole`, use the `mastersRole` property to explicitly provide a role.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/aws/aws-cdk/issues/25674	Issue Tracking Mitigation Third Party Advisory
https://github.com/aws/aws-cdk/security/advisories/GHSA-rx28-r23p-2qc3	Exploit Mitigation Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:amazon:aws_cloud_development_kit::::::::
	cpe:2.3:a:amazon:aws_cloud_development_kit::::::::

History

06 Jul 2023, 15:37

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-06-23 21:15

Updated : 2024-02-04 23:37

NVD link : CVE-2023-35165

Mitre link : CVE-2023-35165

CVE.ORG link : CVE-2023-35165

JSON object : View

Products Affected

amazon

aws_cloud_development_kit

CWE

CWE-863

Incorrect Authorization

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