CVE-2021-21428: Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2021-21428?
CVE-2021-21428 has been classified as a moderate severity vulnerability due to the potential for information leakage.
How do I fix CVE-2021-21428?
To fix CVE-2021-21428, update your OpenAPI Generator to version 5.1.0 or later.
What types of software are affected by CVE-2021-21428?
CVE-2021-21428 affects all versions of OpenAPI Generator prior to 5.1.0.
What is the impact of CVE-2021-21428?
The impact of CVE-2021-21428 includes the creation of insecure temporary folders that can expose sensitive data.
Can CVE-2021-21428 be exploited remotely?
CVE-2021-21428 can potentially be exploited locally if an attacker has access to the environment where the vulnerable software is running.