CVE-2021-35514 : Exploit Details and Defense Strategies

Narou (aka Narou.rb) before 3.8.0 allows Ruby Code Injection via the title name or author name of a novel.

Understanding CVE-2021-35514

This CVE describes a vulnerability in Narou (aka Narou.rb) that enables Ruby Code Injection through specific inputs.

What is CVE-2021-35514?

CVE-2021-35514 highlights a security flaw in Narou (aka Narou.rb) versions prior to 3.8.0, which allows attackers to execute Ruby Code Injection by manipulating the title or author name of a novel.

The Impact of CVE-2021-35514

This vulnerability could be exploited by malicious actors to execute arbitrary Ruby code within the application, potentially leading to unauthorized access, data leakage, or system compromise.

Technical Details of CVE-2021-35514

The technical details for CVE-2021-35514 include:

Vulnerability Description

The vulnerability permits Ruby Code Injection via the novel's title or author name, enabling attackers to execute arbitrary Ruby code within the application.

Affected Systems and Versions

Narou (aka Narou.rb) versions before 3.8.0 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious Ruby code into the title or author name fields of a novel, triggering the code execution.

Mitigation and Prevention

To address CVE-2021-35514, consider the following mitigation strategies:

Immediate Steps to Take

Users should update Narou (aka Narou.rb) to version 3.8.0 or later to patch the vulnerability and prevent Ruby Code Injection attacks.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent malicious code injection attempts in the future.

Patching and Updates

Regularly update software and dependencies to the latest versions to ensure that known vulnerabilities are mitigated.