CVE-2024-8901— Lack of JWT issuer and signer validation

Lack of JWT issuer and signer validation

The AWS ALB Route Directive Adapter For Istio repo https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/tree/master provides an OIDC authentication mechanism that was integrated into the open source Kubeflow project. The adapter uses JWT for authentication, but lacks proper signer and issuer validation. In deployments of ALB that ignore security best practices, where ALB targets are directly exposed to internet traffic, an actor can provide a JWT signed by an untrusted entity in order to spoof OIDC-federated sessions and successfully bypass authentication. The repository/package has been deprecated, is end of life, and is no longer supported. As a security best practice, ensure that your ELB targets (e.g. EC2 Instances, Fargate Tasks etc.) do not have public IP addresses. Ensure any forked or derivative code validate that the signer attribute in the JWT match the ARN of the Application Load Balancer that the service is configured to use.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

使用欺骗进行的认证绕过

AWS ALB Route Directive Adapter For Istio 安全漏洞

AWS ALB Route Directive Adapter For Istio是Amazon Web Services开源的一个适用于 Istio 的 AWS ALB 路由指令适配器。 AWS ALB Route Directive Adapter For Istio v1.0和v1.1版本存在安全漏洞，该漏洞源于使用JWT进行身份验证，但缺乏适当的签名者和颁发者验证，攻击者可以提供由不受信任实体签名的JWT，以欺骗OIDC联合会话并成功绕过身份验证。

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