CVE-2023-30451 Explained : Impact and Mitigation

A security vulnerability has been discovered in TYPO3 11.5.24 that allows attackers with access to the administrator panel to read arbitrary files through directory traversal in the baseuri field.

Understanding CVE-2023-30451

This section will provide an overview of the CVE-2023-30451 vulnerability.

What is CVE-2023-30451?

The CVE-2023-30451 vulnerability exists in TYPO3 11.5.24, where the filelist component can be exploited by attackers to read arbitrary files by manipulating the baseuri field.

The Impact of CVE-2023-30451

This vulnerability can be leveraged by malicious actors with access to the administrator panel to disclose sensitive information, potentially leading to unauthorized access and data breaches.

Technical Details of CVE-2023-30451

In this section, we will delve into the technical aspects of the CVE-2023-30451 vulnerability.

Vulnerability Description

Attackers can exploit the filelist component in TYPO 11.5.24 by inserting ../ sequences in specific data fields to traverse directories and access unauthorized files.

Affected Systems and Versions

The vulnerability affects TYPO3 version 11.5.24 specifically.

Exploitation Mechanism

The vulnerability is exploited through the baseuri field in the filelist component, allowing attackers to perform directory traversal and access files outside the intended directory structure.

Mitigation and Prevention

To address the CVE-2023-30451 vulnerability, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Update TYPO3 to a patched version that addresses the directory traversal issue.
Restrict access to the TYPO3 administrator panel to authorized users only.

Long-Term Security Practices

Regularly review and update access controls and permissions within TYPO3.
Conduct security audits and penetration testing to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security updates and patches released by TYPO3 and promptly apply them to mitigate known vulnerabilities.