CVE-2021-29427 : Vulnerability Insights and Analysis

This article discusses a vulnerability in Gradle versions between 5.1 and 6.8.3 that allows for information disclosure and dependency poisoning due to ineffective repository content filtering in the

pluginManagement

block within settings files. The issue has been patched in Gradle 7.0, and users are advised to update their builds promptly.

Understanding CVE-2021-29427

This section delves into the details of the CVE-2021-29427 vulnerability.

What is CVE-2021-29427?

Gradle versions 5.1 to 6.8.3 are susceptible to information disclosure and dependency poisoning when content filtering fails within the

pluginManagement

block.

The Impact of CVE-2021-29427

The vulnerability poses high risks, including leaking internal package identifiers and downloading malicious binaries from external repositories, leading to dependency confusion.

Technical Details of CVE-2021-29427

Explore the technical aspects of the CVE-2021-29427 vulnerability.

Vulnerability Description

Ineffective repository content filtering in Gradle versions 5.1 to 6.8.3 exposes users to information leaks and dependency poisoning threats.

Affected Systems and Versions

Gradle versions from 5.1 up to 6.8.3 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability occurs when content filters are not enforced within the

pluginManagement

block, allowing for unauthorized repository searches.

Mitigation and Prevention

Discover the steps to mitigate the CVE-2021-29427 vulnerability.

Immediate Steps to Take

Users are advised to upgrade their Gradle builds to version 7.0 or implement company repository rules for secure package fetching.

Long-Term Security Practices

To ensure ongoing security, adopting project-level repository content filtering is recommended.

Patching and Updates

Gradle 7.0 contains the necessary patches for CVE-2021-29427, resolving the vulnerability and enhancing security measures.