CVE-2021-21429 Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI Generator Maven plugin
Attackers can read or modify insecure temporary files created by the OpenAPI Generator Maven plugin, potentially exposing sensitive data or altering code generation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-21429?
CVE-2021-21429 is a medium-severity vulnerability in OpenAPITools openapi-generator, published on 27 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-552
Which versions are affected by CVE-2021-21429?
2 open source packages ship an affected version, including org.openapitools:openapi-generator-maven-plugin. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.openapitools:openapi-generator-maven-plugin Maven | All versions | 5.1.0 |
org.openapitools:openapi-generator-maven-plugin Maven | All versions | 5.1.0 |
Products include Openapi-Generator Openapi Generator.
How do I fix CVE-2021-21429?
Upgrade org.openapitools:openapi-generator-maven-plugin to 5.1.0 or later.
Is CVE-2021-21429 being exploited?
There is no known exploitation of CVE-2021-21429 in the wild and no public exploit code.
Other vulnerabilities in OpenAPITools openapi-generator
- CVE-2021-21428 Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator
- CVE-2023-27162 OpenAPI Generator vulnerable to Server-Side Request Forgery
- CVE-2019-11405 OpenAPI Tools OpenAPI Generator uses HTTP in various files
- CVE-2021-21430 Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code
Sources
Also known as GHSA-867q-77cc-98mv.