CVE-2023-44387 : Vulnerability Insights and Analysis

Gradle has incorrect permission assignment for symlinked files used in copy or archiving operations.

Understanding CVE-2023-44387

What is CVE-2023-44387?

Gradle is a build tool with a focus on build automation and support for multi-language development. In this vulnerability, when copying or archiving symlinked files, Gradle resolves them but applies the permissions of the symlink itself instead of the permissions of the linked file to the resulting file. This could lead to files having excessive permissions, potentially creating security vulnerabilities.

The Impact of CVE-2023-44387

While this issue may not result in a direct vulnerability for the impacted build, it opens up potential attack vectors depending on where build artifacts are copied to or un-archived. Versions 7.6.3, 8.4.0, and newer address this vulnerability by correctly using the permissions of the file pointed at by the symlink.

Technical Details of CVE-2023-44387

Vulnerability Description

The vulnerability arises from Gradle incorrectly assigning permissions for symlinked files during copy or archiving operations, potentially leading to files with excessive permissions.

Affected Systems and Versions

Vendor: Gradle
Product: Gradle
Affected Versions:
= 7.6.0, < 7.6.3

< 8.4.0

Exploitation Mechanism

The incorrect assignment of symlinked file permissions in Gradle can be exploited to manipulate file permissions and potentially create security vulnerabilities.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to update their Gradle installations to version 7.6.3 or higher to address this vulnerability. It is important to regularly check for updates and apply them promptly to ensure security.

Long-Term Security Practices

Developers should be cautious when handling symlinked files and ensure that permissions are correctly assigned to avoid security risks. Implementing secure coding practices and regular security audits can help prevent similar vulnerabilities.

Patching and Updates

Gradle versions 7.6.3, 8.4.0, and later include fixes for this vulnerability. Users should prioritize updating to the latest stable version to mitigate the risk associated with incorrect permission assignment for symlinked files.