CVE-2021-33896 Explained : Impact and Mitigation

Dino before 0.1.2 and 0.2.x before 0.2.1 allows Directory Traversal (only for creation of new files) via URI-encoded path separators.

Understanding CVE-2021-33896

This article discusses the impact, technical details, and mitigation strategies for CVE-2021-33896 affecting Dino.

What is CVE-2021-33896?

CVE-2021-33896 is a vulnerability found in Dino versions before 0.1.2 and 0.2.x before 0.2.1 that enables Directory Traversal through URI-encoded path separators.

The Impact of CVE-2021-33896

This vulnerability allows attackers to perform Directory Traversal, leading to unauthorized access and potential information disclosure within affected systems.

Technical Details of CVE-2021-33896

Let's delve deeper into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Dino versions allows for Directory Traversal during the creation of new files using URI-encoded path separators.

Affected Systems and Versions

Affected systems include Dino versions prior to 0.1.2 and 0.2.x before 0.2.1.

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing URI-encoded path separators to navigate through directories and access unauthorized files.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-33896.

Immediate Steps to Take

It is recommended to update Dino to versions 0.1.2 and 0.2.1 or later to mitigate the vulnerability. Additionally, implement access controls to restrict file access.

Long-Term Security Practices

Establish security protocols to regularly update software, conduct security assessments, and monitor for unusual file access patterns.

Patching and Updates

Stay informed about security patches and updates released by Dino to address vulnerabilities and enhance system security.