{"id":"CVE-2024-8901","state":"PUBLISHED","title":"Lack of JWT issuer and signer validation","description":"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.\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 attribute in the JWT match the ARN of the Application Load Balancer that the service is configured to use.","publishedAt":"2024-10-21T23:19:31.138Z","updatedAt":"2025-10-14T19:01:50.153Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"AMZN"},"assigner":"AMZN","products":["Amazon AWS ALB Route Directive Adapter For Istio"],"affected":[{"vendor":"Amazon","product":"AWS ALB Route Directive Adapter For Istio","packageName":"aws-alb-route-directive-adapter-for-istio","defaultStatus":"affected","versions":[{"version":"1.0","status":"affected"},{"version":"1.1","status":"affected"}],"collectionURL":"https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio"}],"references":["https://aws.amazon.com/security/security-bulletins/AWS-2024-011/","https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/security/advisories/GHSA-789x-wph8-m68r"],"weaknesses":["CWE-290"],"ingestedAt":"2026-10-29T20:08:20.985Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/8xxx/CVE-2024-8901.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-8901","state":"PUBLISHED","datePublished":"2024-10-21T23:19:31.138Z","dateUpdated":"2025-10-14T19:01:50.153Z","assignerShortName":"AMZN","assignerOrgId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","dateReserved":"2024-09-16T18:54:33.287Z"},"containers":{"cna":{"title":"Lack of JWT issuer and signer validation","descriptions":[{"lang":"en","value":"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. 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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."}],"affected":[{"vendor":"Amazon","product":"AWS ALB Route Directive Adapter For Istio","packageName":"aws-alb-route-directive-adapter-for-istio","defaultStatus":"affected","versions":[{"version":"1.0","status":"affected"},{"version":"1.1","status":"affected"}],"collectionURL":"https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio"}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/AWS-2024-011/","tags":["vendor-advisory"]},{"url":"https://github.com/awslabs/aws-alb-route-directive-adapter-for-istio/security/advisories/GHSA-789x-wph8-m68r","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV3_1":{"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"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","description":"CWE-290 Authentication Bypass by Spoofing","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"AMZN","orgId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","dateUpdated":"2025-10-14T19:01:50.153Z"},"impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115 Authentication Bypass"}]}],"source":{"discovery":"EXTERNAL"},"tags":["unsupported-when-assigned"],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"amazon","product":"aws_alb_route_directive_adapter_for_istio","defaultStatus":"affected","versions":[{"version":"1.0","status":"affected"},{"version":"1.1","status":"affected"}],"cpes":["cpe:2.3:a:amazon:aws_alb_route_directive_adapter_for_istio:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-22T15:59:54.954050Z","id":"CVE-2024-8901","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-22T16:01:52.200Z"}}]}}}