CVE-2021-21429 Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI Generator Maven plugin

2021-04-2720:00:18

CWE-552

GitHub_M

www.cve.org

openapi generator

maven plugin

insecure temporary files

patched

v5.1.0

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

4.6

Confidence

High

EPSS

Percentile

12.6%

JSON

OpenAPI Generator allows generation of API client libraries, server stubs, documentation and configuration automatically given an OpenAPI Spec. Using File.createTempFile in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. OpenAPI Generator maven plug-in creates insecure temporary files during the process. The issue has been patched with Files.createTempFile and released in the v5.1.0 stable version.

CNA Affected

[
  {
    "product": "openapi-generator",
    "vendor": "OpenAPITools",
    "versions": [
      {
        "status": "affected",
        "version": "< 5.1.0"
      }
    ]
  }
]