CVE-2021-23631 Explained : Impact and Mitigation

Aritra Chakraborty discovered a directory traversal vulnerability affecting all versions of package convert-svg-core, convert-svg-to-png, and convert-svg-to-jpeg. This vulnerability allows an attacker to read arbitrary files from the file system by using a specially crafted SVG file.

Understanding CVE-2021-23631

This CVE involves a directory traversal vulnerability in the mentioned packages that can be exploited through a crafted SVG file.

What is CVE-2021-23631?

CVE-2021-23631 is a directory traversal vulnerability that impacts convert-svg-core, convert-svg-to-png, and convert-svg-to-jpeg packages. An attacker can exploit this vulnerability to access arbitrary files on the system.

The Impact of CVE-2021-23631

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.5. It poses a confidentiality impact by allowing unauthorized access to sensitive files on the system.

Technical Details of CVE-2021-23631

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to read arbitrary files from the file system, potentially leading to unauthorized disclosure of sensitive information.

Affected Systems and Versions

All versions of convert-svg-core, convert-svg-to-png, and convert-svg-to-jpeg are affected by this vulnerability.

Exploitation Mechanism

By utilizing a specially crafted SVG file, an attacker can exploit the vulnerability to access files on the system.

Mitigation and Prevention

Protecting systems from CVE-2021-23631 requires immediate action and long-term security practices.

Immediate Steps to Take

Users should apply relevant security patches and updates provided by the package maintainers to mitigate the risk of exploitation.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security audits to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly update the affected packages to ensure that the latest security fixes are in place.