CVE-2024-10125 - Amazon Application LoadBalancer Untrusted JWT Signer IAM Identity

CVE ID : CVE-2024-10125
Published : Oct. 22, 2024, 12:15 a.m. | 25 minutes ago
Description : The Amazon.ApplicationLoadBalancer.Identity.AspNetCore repo https://github.com/awslabs/aws-alb-identity-aspnetcore#validatetokensignature contains Middleware that can be used in conjunction with the Application Load Balancer (ALB) OpenId Connect integration and can be used in any ASP.NET http://asp.net/ Core deployment scenario, including Fargate, EKS, ECS, EC2, and Lambda. In the JWT handling code, it performs signature validation but fails to validate the JWT issuer and signer identity. The signer omission, if combined with a scenario where the infrastructure owner allows internet traffic to the ALB targets (not a recommended configuration), can allow for JWT signing by an untrusted entity and an actor may be able to mimic valid OIDC-federated sessions to the ALB targets.
Severity: 7.5 | HIGH
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