CVE-2023-6562 : Vulnerability Insights and Analysis

This CVE-2023-6562 involves a vulnerability in the JPX Fragment List (flst) box in Kakadu 7.9, potentially allowing an attacker to exfiltrate local and remote files if a server permits the upload of a specially-crafted image.

Understanding CVE-2023-6562

This section delves into the details of CVE-2023-6562, highlighting its significance and implications.

What is CVE-2023-6562?

The vulnerability lies in the JPX Fragment List (flst) box of Kakadu 7.9, enabling attackers to extract sensitive data from local and remote files accessible by a server.

The Impact of CVE-2023-6562

The exploit poses a high severity risk with a base score of 7.5, potentially leading to the unauthorized retrieval of confidential information, exploiting a CWE-22 Path Traversal weakness.

Technical Details of CVE-2023-6562

This section provides a deeper understanding of the vulnerability in terms of its description, affected systems, and exploitation method.

Vulnerability Description

The vulnerability in the JPX Fragment List (flst) box of Kakadu 7.9 allows attackers to retrieve embedded sensitive data from files reachable by the server, potentially leading to data exfiltration.

Affected Systems and Versions

The affected product is Kakadu SDK version 4.4 (Python) with versions less than 8.4.

Exploitation Mechanism

Attackers can exploit this vulnerability if the server permits the upload of a specially-crafted image, which can then be used to exfiltrate sensitive data from local and remote files.

Mitigation and Prevention

This section outlines the steps that can be taken to mitigate the risks associated with CVE-2023-6562 and prevent potential exploitation.

Immediate Steps to Take

Update Kakadu SDK to a non-vulnerable version (8.4 or higher).
Restrict image uploads to prevent the upload of maliciously-crafted images.
Monitor for any suspicious behavior indicating data exfiltration attempts.

Long-Term Security Practices

Implement secure coding practices to prevent path traversal vulnerabilities.
Conduct regular security audits and penetration testing to identify and address potential vulnerabilities.
Educate staff on secure upload practices to reduce the risk of exploitation.

Patching and Updates

Keep systems and software up to date with the latest security patches and updates to ensure that known vulnerabilities, such as CVE-2023-6562, are addressed promptly.