CVE-2021-21364 Information

Description

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.

CVSS Vector

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

Reference

https://github.com/swagger-api/swagger-codegen/security/advisories/GHSA-hpv8-9rq5-hq7w https://github.com/swagger-api/swagger-codegen/commit/35adbd552d5f99b3ff1e0e59da228becc85190f2

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5