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I. Basic Information for CVE-2021-21430
Vulnerability Information

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Vulnerability Title
Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. Using `File.createTempFile` in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. Auto-generated code (Java, Scala) that deals with uploading or downloading binary data through API endpoints will create insecure temporary files during the process. Affected generators: `java` (jersey2, okhttp-gson (default library)), `scala-finch`. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenAPI Tools OpenAPI Generator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenAPI Tools OpenAPI Generator是一款OpenAPI生成器。该产品允许在给定OpenAPI规范(v2,v3)的情况下自动生成API客户端库(SDK生成),服务器存根,文档和配置等。 Openapi generator 存在安全漏洞。该漏洞源于程序在创建不安全的临时目录时,这些临时文件可能会使应用程序和系统数据容易受到攻击。
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
VendorProductAffected VersionsCPESubscribe
OpenAPIToolsopenapi-generator < 5.1.0 -
II. Public POCs for CVE-2021-21430
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III. Intelligence Information for CVE-2021-21430
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IV. Related Vulnerabilities
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