CVE-2024-8901

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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.\n\n\n\nThe 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\u00a0attribute in the JWT match the ARN of the Application Load Balancer that the service is configured to use.", "supportingMedia": [{"type": "text/html", "value": "<p></p><p>The <a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/tree/master\">AWS ALB Route Directive Adapter For Istio repo</a> 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.</p><p></p><p>The repository/package has been deprecated, is end of life, and is no longer supported. 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Ensure any forked or derivative code validate that the signer\u00a0attribute in the JWT match the ARN of the Application Load Balancer that the service is configured to use."}, {"lang": "es", "value": "El adaptador de directiva de ruta AWS ALB para el repositorio Istio https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/tree/master proporciona un mecanismo de autenticaci\u00f3n OIDC que se integr\u00f3 en el proyecto de c\u00f3digo abierto Kubeflow. El adaptador utiliza JWT para la autenticaci\u00f3n, pero carece de una validaci\u00f3n adecuada de firmante y emisor. En implementaciones poco comunes de ALB, en las que los puntos de conexi\u00f3n est\u00e1n expuestos al tr\u00e1fico de Internet, un actor puede proporcionar un JWT firmado por una entidad no confiable para falsificar sesiones federadas de OIDC y eludir la autenticaci\u00f3n con \u00e9xito."}], "id": "CVE-2024-8901", "lastModified": "2026-06-17T08:23:31.507", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.7, "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-8901", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T15:59:54.954050Z", "version": "2.0.3"}}]}, "published": "2024-10-22T00:15:03.667", "references": [{"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "url": "https://aws.amazon.com/security/security-bulletins/AWS-2024-011/"}, {"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "url": "https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/security/advisories/GHSA-789x-wph8-m68r"}], "sourceIdentifier": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-290"}], "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}]}

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