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I. Basic Information for CVE-2021-21428
Vulnerability Information

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Vulnerability Title
Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator
Source: NVD (National Vulnerability Database)
Vulnerability Description
Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. The insecure temporary folders store the auto-generated files which can be read and appended to by any users on the system. 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:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Openapi generator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openapi-generator是一个应用软件。提供一个开放的API接口。 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,系统上的任何用户都可以读取并附加这些文件。
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-2021-21428
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III. Intelligence Information for CVE-2021-21428
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IV. Related Vulnerabilities
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