CVE-2025-23206— IAM OIDC custom resource allows connection to unauthorized OIDC provider in aws-cdk

IAM OIDC custom resource allows connection to unauthorized OIDC provider in aws-cdk

The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will download CA Thumbprints as part of the custom resource workflow. However, the current `tls.connect` method will always set `rejectUnauthorized: false` which is a potential security concern. CDK should follow the best practice and set `rejectUnauthorized: true`. However, this could be a breaking change for existing CDK applications and we should fix this with a feature flag. Note that this is marked as low severity Security advisory because the issuer url is provided by CDK users who define the CDK application. If they insist on connecting to a unauthorized OIDC provider, CDK should not disallow this. Additionally, the code block is run in a Lambda environment which mitigate the MITM attack. The patch is in progress. To mitigate, upgrade to CDK v2.177.0 (Expected release date 2025-02-22). Once upgraded, users should make sure the feature flag '@aws-cdk/aws-iam:oidcRejectUnauthorizedConnections' is set to true in `cdk.context.json` or `cdk.json`. There are no known workarounds for this vulnerability.

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密码学签名的验证不恰当

AWS Cloud Development Kit 数据伪造问题漏洞

AWS Cloud Development Kit是Amazon Web Services开源的一个开源软件开发框架，用于在代码中定义云基础设施并通过 AWS CloudFormation 进行配置。 AWS Cloud Development Kit存在数据伪造问题漏洞，该漏洞源于在默认参数情况下不会验证对端的SSL/TLS证书是否有效。

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