CVE-2023-25652 : Vulnerability Insights and Analysis

This CVE involves a vulnerability in Git prior to versions 2.30.9, 2.31.8, 2.32.7, 2.33.8, 2.34.8, 2.35.8, 2.36.6, 2.37.7, 2.38.5, 2.39.3, and 2.40.1 that allows for partially-controlled arbitrary file write when using the

git apply --reject

command.

Understanding CVE-2023-25652

This section provides insights into the nature of the CVE and its implications in the Git software system.

What is CVE-2023-25652?

The vulnerability in Git allows an attacker to overwrite a path outside the working tree with partially controlled contents using specially crafted input with the

git apply --reject

command.

The Impact of CVE-2023-25652

The impact of this vulnerability is rated as high severity, with the potential for unauthorized modification of files on the system, leading to integrity issues within the software environment.

Technical Details of CVE-2023-25652

Delving into the technical aspects of the CVE, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper limitation of a pathname to a restricted directory, allowing for path traversal and unauthorized file overwrites using the

git apply --reject

command.

Affected Systems and Versions

The vulnerability affects Git versions prior to 2.30.9, 2.31.8, 2.32.7, 2.33.8, 2.34.8, 2.35.8, 2.36.6, 2.37.7, 2.38.5, 2.39.3, and 2.40.1, impacting a range of software versions.

Exploitation Mechanism

By supplying malicious input to the

git apply --reject

command, threat actors can exploit the vulnerability to write arbitrary content to files outside the intended working directory, potentially compromising system integrity.

Mitigation and Prevention

Taking proactive measures to mitigate the risks associated with CVE-2023-25652 is crucial for safeguarding Git users and preventing unauthorized file modifications.

Immediate Steps to Take

Users are advised to update Git to the patched versions (2.30.9, 2.31.8, 2.32.7, 2.33.8, 2.34.8, 2.35.8, 2.36.6, 2.37.7, 2.38.5, 2.39.3, or 2.40.1) to address the vulnerability.
Avoid using

git apply --reject

when applying patches from untrusted sources to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update and patch software to ensure the latest security fixes are in place.
Implement secure coding practices and conduct security audits to identify and mitigate potential vulnerabilities.

Patching and Updates

Users should prioritize updating their Git installations to the fixed versions provided to eliminate the vulnerability and enhance system security.