Explore CVE-2021-21429, a vulnerability in OpenAPI Generator Maven plugin causing insecure temporary file creation. Learn about its impact, affected systems, and mitigation steps.
OpenAPI Generator allows the automatic generation of API client libraries, server stubs, documentation, and configuration from an OpenAPI Spec. The CVE-2021-21429 highlights a vulnerability in the OpenAPI Generator Maven plugin that creates temporary files with insecure permissions, potentially exposing application and system data to attacks. Keep reading to understand the impact, technical details, and mitigation strategies for this CVE.
Understanding CVE-2021-21429
This section provides insights into the nature of the vulnerability and its repercussions.
What is CVE-2021-21429?
CVE-2021-21429 involves the insecure creation of temporary files by the OpenAPI Generator Maven plugin, posing risks to data security and integrity.
The Impact of CVE-2021-21429
The vulnerability allows local attackers to exploit insecure temporary files, potentially compromising data confidentiality and system integrity.
Technical Details of CVE-2021-21429
Explore the specifics of the vulnerability, including affected systems, exploitation mechanisms, and more.
Vulnerability Description
The issue arises from using
File.createTempFile
in JDK, leading to the generation of insecure temporary files that can expose sensitive data to external threats.
Affected Systems and Versions
The vulnerability affects OpenAPI Generator versions prior to v5.1.0, specifically impacting the Maven plug-in functionality for generating API-related components.
Exploitation Mechanism
By exploiting the insecure temporary files created during the generation process, attackers can gain unauthorized access to sensitive application and system data.
Mitigation and Prevention
Discover the steps to mitigate the risks posed by CVE-2021-21429 and prevent potential security breaches.
Immediate Steps to Take
Users are advised to update to version 5.1.0 of OpenAPI Generator to eliminate the vulnerability and ensure secure file handling.
Long-Term Security Practices
Implement secure coding practices to avoid similar vulnerabilities in future software releases and maintain robust data security.
Patching and Updates
Stay informed about security patches and updates provided by OpenAPI Generator to address identified vulnerabilities and enhance overall system security.