CVE-2023-34102 : Vulnerability Insights and Analysis

Avo, an open-source Ruby on Rails admin panel creation framework, has a vulnerability that could lead to a possible unsafe reflection and partial denial of service.

Understanding CVE-2023-34102

This CVE details a security issue in Avo affecting certain versions of the framework.

What is CVE-2023-34102?

The vulnerability arises from the polymorphic field type in Avo, which does not validate classes when updating a record with user input. This oversight can result in unexpected behavior, remote code execution, or application crashes when manipulating records.

The Impact of CVE-2023-34102

The vulnerability poses a high risk with a CVSS base score of 8.3, potentially leading to a partial denial of service in affected systems. However, the confidentiality impact is low while integrity and availability impacts are high.

Technical Details of CVE-2023-34102

The technical aspects of the vulnerability in Avo.

Vulnerability Description

Avo's polymorphic field type fails to validate classes during record updates, opening the door to various security risks.

Affected Systems and Versions

Versions up to 2.33.2 and between 3.0.0.pre1 to 3.0.0.pre12 are impacted by this vulnerability.

Exploitation Mechanism

By manipulating records with unvalidated classes, attackers can exploit the vulnerability to achieve unauthorized code execution or cause application instability.

Mitigation and Prevention

Measures to address and prevent exploitation of CVE-2023-34102.

Immediate Steps to Take

Users are advised to limit access to untrusted individuals until a patched version including commit

ec117882d

is released to mitigate the vulnerability.

Long-Term Security Practices

Developers should ensure input validation for polymorphic fields and regularly update Avo to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about Avo's security advisories and commit history to promptly apply patches and updates for enhanced security.