smartbear swagger-codegen 创建拥有不安全权限的临时文件

CVE编号

CVE-2021-21363

利用情况

暂无

补丁情况

N/A

披露时间

2021-03-11

漏洞描述

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.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://github.com/swagger-api/swagger-codegen/commit/987ea7a30b463cc239580d6...
https://github.com/swagger-api/swagger-codegen/security/advisories/GHSA-pc22-...

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	smartbear	swagger-codegen	*		Up to (excluding) 2.4.19

CVSS3评分 7.0

• 攻击路径 本地
• 攻击复杂度 高
• 权限要求 低
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-378 创建拥有不安全权限的临时文件 CWE-379 在具有不安全权限的目录中创建临时文件