CVE-2023-34090 : What You Need to Know

This article provides detailed information about CVE-2023-34090, a vulnerability in Decidim that could lead to sensitive data disclosure.

Understanding CVE-2023-34090

Decidim, a participatory democracy framework, is vulnerable to sensitive data disclosure due to a flaw in the Ransack library.

What is CVE-2023-34090?

Decidim, developed for the Barcelona City government, allows attackers to exfiltrate non-public data from the underlying database, potentially leading to sensitive data disclosure.

The Impact of CVE-2023-34090

The vulnerability in Decidim could result in exposing sensitive information to unauthorized actors, posing a high risk to confidentiality.

Technical Details of CVE-2023-34090

This section delves into the specifics of the vulnerability affecting Decidim.

Vulnerability Description

Decidim's use of the Ransack library allows unauthenticated remote attackers to extract non-public data, such as user information, from the database, potentially resulting in data leaks.

Affected Systems and Versions

Decidim versions equal to or greater than 0.27.0 and less than 0.27.3 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability over the network without the need for any specific privileges, making it a high-risk threat to data confidentiality.

Mitigation and Prevention

To protect systems from CVE-2023-34090, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Update Decidim to version 0.27.3 or later to apply the necessary patches and mitigate the risk of sensitive data exposure.

Long-Term Security Practices

Employ robust security measures, perform regular security assessments, and monitor for potential data leaks to safeguard against similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by Decidim to address known vulnerabilities and enhance system security.