CVE-2020-5299 : Exploit Details and Defense Strategies

OctoberCMS (october/october composer package) versions from 1.0.319 to 1.0.466 are vulnerable to CSV injection, potentially allowing attackers to manipulate data exported as CSV files.

Understanding CVE-2020-5299

In OctoberCMS versions 1.0.319 to 1.0.466, a CSV injection vulnerability exists, enabling attackers to introduce malicious content into exported CSV files.

What is CVE-2020-5299?

Attackers can exploit the ImportExportController to inject CSV data, potentially causing harm when opened in vulnerable spreadsheet software.
Successful attacks require finding vulnerabilities in the victim's spreadsheet software and convincing them to export and open manipulated CSV files.

The Impact of CVE-2020-5299

CVSS Base Score: 4 (Medium)
Attack Vector: Network
Attack Complexity: High
Privileges Required: High
User Interaction: Required
Scope: Changed
Confidentiality and Integrity Impact: Low
Availability Impact: None

Technical Details of CVE-2020-5299

OctoberCMS vulnerability details and affected systems.

Vulnerability Description

The vulnerability allows users to introduce CSV injection into exported data, potentially leading to malicious CSV files.

Affected Systems and Versions

Product: October
Vendor: OctoberCMS
Versions Affected: >= 1.0.319, < 1.0.466

Exploitation Mechanism

Attackers manipulate data exportable through ImportExportController to create malicious CSV files.

Mitigation and Prevention

Protecting systems from CVE-2020-5299.

Immediate Steps to Take

Update to Build 466 (v1.0.466) to patch the vulnerability.
Avoid exporting and opening CSV files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches.
Educate users on safe data handling practices.

Patching and Updates

Ensure timely installation of security updates and patches.