CVE-2023-25955 : What You Need to Know

This CVE record was published on April 11, 2023, by JPCERT. The vulnerability affects the National land numerical information data conversion tool, all versions, by improperly restricting XML external entity references (XXE). This issue could potentially allow an attacker to access arbitrary files on the user's PC by processing a specially crafted XML file.

Understanding CVE-2023-25955

This section will provide an overview of what CVE-2023-25955 entails.

What is CVE-2023-25955?

CVE-2023-25955 is a vulnerability that impacts the National land numerical information data conversion tool, all versions. It arises due to the improper restriction of XML external entity references, potentially enabling unauthorized access to files on the user's PC.

The Impact of CVE-2023-25955

The exploitation of CVE-2023-25955 could lead to a significant security risk for users of the National land numerical information data conversion tool. If successfully exploited, an attacker could access sensitive files on the affected PC, compromising data confidentiality and integrity.

Technical Details of CVE-2023-25955

In this section, we will delve into the technical aspects of CVE-2023-25955.

Vulnerability Description

The vulnerability in the National land numerical information data conversion tool arises from improper restrictions on XML external entity references. This allows threat actors to manipulate a specially crafted XML file to access files on the user's PC.

Affected Systems and Versions

The Ministry of Land, Infrastructure, Transport and Tourism, Japan, is the vendor impacted by this vulnerability. Specifically, the National land numerical information data conversion tool in all versions is susceptible to this issue.

Exploitation Mechanism

By exploiting the improper restriction of XML external entity references in the affected tool, an attacker can craft a malicious XML file to trigger unauthorized access to files on the target PC.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-25955 is crucial for maintaining security.

Immediate Steps to Take

Users of the National land numerical information data conversion tool should exercise caution when processing XML files from untrusted sources. Implementing input validation and restricting access to sensitive files can help mitigate the risk associated with this vulnerability.

Long-Term Security Practices

Regularly updating software and applying security patches can fortify the resilience of systems against potential vulnerabilities like CVE-2023-25955. Additionally, educating users on safe browsing habits and promoting awareness of social engineering tactics can enhance overall security posture.

Patching and Updates

It is essential for users to stay informed about security advisories from the Ministry of Land, Infrastructure, Transport and Tourism, Japan, and promptly apply any patches or updates released to address CVE-2023-25955. Regularly checking for software updates and maintaining a robust cybersecurity strategy are key components of effective vulnerability management.