CVE-2018-20157 : Vulnerability Insights and Analysis

OpenRefine's data import feature, up to version 3.1, is vulnerable to an XML External Entity (XXE) attack through a specially crafted (zip) file, allowing unauthorized access to read any desired files.

Understanding CVE-2018-20157

This CVE entry highlights a security vulnerability in OpenRefine's data import functionality.

What is CVE-2018-20157?

The vulnerability in OpenRefine's data import feature allows malicious actors to execute an XML External Entity (XXE) attack by using a manipulated (zip) file, leading to unauthorized file access.

The Impact of CVE-2018-20157

The exploitation of this vulnerability can result in unauthorized access to sensitive files, potentially compromising the confidentiality and integrity of data stored within OpenRefine.

Technical Details of CVE-2018-20157

This section delves into the technical aspects of the CVE entry.

Vulnerability Description

The vulnerability in OpenRefine version 3.1 and below enables an XXE attack through a crafted (zip) file, allowing threat actors to read arbitrary files.

Affected Systems and Versions

Product: OpenRefine
Vendor: N/A
Versions affected: Up to version 3.1

Exploitation Mechanism

The vulnerability is exploited by utilizing a specifically crafted (zip) file to trigger an XXE attack, granting unauthorized access to read files.

Mitigation and Prevention

Protecting systems from CVE-2018-20157 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update OpenRefine to the latest version to mitigate the vulnerability.
Avoid importing data from untrusted or unknown sources.

Long-Term Security Practices

Regularly monitor and audit data import processes for any suspicious activities.
Educate users on safe data handling practices to prevent similar attacks.

Patching and Updates

Stay informed about security updates and patches released by OpenRefine to address vulnerabilities like CVE-2018-20157.