CVE-2021-21363— Generator Web Application: Local Privilege Escalation Vulnerability via System Temp Directory

Generator Web Application: Local Privilege Escalation Vulnerability via System Temp Directory

swagger-codegen is an open-source project which contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition. In swagger-codegen before version 2.4.19, on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. This vulnerability is local privilege escalation because the contents of the `outputFolder` can be appended to by an attacker. As such, code written to this directory, when executed can be attacker controlled. For more details refer to the referenced GitHub Security Advisory. This vulnerability is fixed in version 2.4.19. Note this is a distinct vulnerability from CVE-2021-21364.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N

在具有不安全权限的目录中创建临时文件

HugoMario swagger-codegen 安全漏洞

HugoMario swagger-codegen是 （HugoMario） 的一个应用软件。用于在给定OpenAPI Spec的情况下自动生成API客户端库（生成SDK），服务器存根和文档。 swagger-codegen 存在安全漏洞，攻击者可利用该漏洞将outputFolder的内容附加到其后。写入该目录的代码在执行时受到攻击者的控制。

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