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CVE-2021-21364GHSA-HPV8-9RQ5-HQ7W

Generated Code Contains Local Information Disclosure Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.4.19
None on Exploit-DB, Metasploit or GitHub

Summary

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 temporary directory is shared between all local users. When files/directories are created, the default `umask` settings for the process are respected. As a result, by default, most processes/apis will create files/directories with the permissions `-rw-r--r--` and `drwxr-xr-x` respectively, unless an API that explicitly sets safe file permissions is used. Because this vulnerability impacts generated code, the generated code will remain vulnerable until fixed manually! This vulnerability is fixed in version 2.4.19. Note this is a distinct vulnerability from CVE-2021-21363.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • swagger-api swagger-codegen

    fixed in 2.4.19

  • io.swagger:swagger-codegenMaven

    fixed in 2.4.19

References 2

GitHub · swagger-api/swagger-codegen