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

Quick assessment

Affected
Amazon AWS ALB Route Directive Adapter For Istio
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 7.5 · High EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-8901

Vulnerability Information
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Vulnerability Title
Lack of JWT issuer and signer validation
Source: CVE Program / CVE List V5
Vulnerability 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. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
AWS ALB Route Directive Adapter For Istio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Amazon AWS ALB Route Directive Adapter For Istio 1.0 -

II. Public POCs for CVE-2024-8901

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7785 chars
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III. Intelligence Information for CVE-2024-8901

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Vendor Advisories for CVE-2024-8901 (1)

IV. Related Vulnerabilities

Same vendor: Amazon
Same weakness: CWE-290

V. Comments for CVE-2024-8901

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