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  5. CVE-2021-21428

CVE-2021-21428: Improper Privilege Management

May 11, 2021

Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. The insecure temporary folders store the auto-generated files which can be read and appended to by any users on the system. The issue has been patched with Files.createTempFile and released in the v5.1.0 stable version.

References

  • github.com/OpenAPITools/openapi-generator/blob/c6530519975341d7784a252132b2f0854f488901/modules/openapi-generator-online/src/main/java/org/openapitools/codegen/online/service/Generator.java
  • github.com/OpenAPITools/openapi-generator/pull/8788
  • github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf
  • github.com/advisories/GHSA-23x4-m842-fmwf
  • github.com/swagger-api/swagger-codegen/security/advisories/GHSA-pc22-3g76-gm6j
  • nvd.nist.gov/vuln/detail/CVE-2021-21428

Code Behaviors & Features

Detect and mitigate CVE-2021-21428 with GitLab Dependency Scanning

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Affected versions

All versions before 5.1.0

Fixed versions

  • 5.1.0

Solution

Upgrade to version 5.1.0 or above.

Impact 7 HIGH

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

Learn more about CVSS

Weakness

  • CWE-269: Improper Privilege Management
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Source file

maven/org.openapitools/openapi-generator-online/CVE-2021-21428.yml

Spotted a mistake? Edit the file on GitLab.

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