CVE-2018-20237 : Vulnerability Insights and Analysis

Atlassian Confluence Server and Data Center before version 6.13.1 allow an authenticated user to download a deleted page via the word export feature.

Understanding CVE-2018-20237

This CVE involves an Indirect Object Reference vulnerability in Atlassian Confluence Server and Data Center.

What is CVE-2018-20237?

The vulnerability in Atlassian Confluence Server and Data Center, prior to version 6.13.1, enables a logged-in user to download a deleted page using the word export feature.

The Impact of CVE-2018-20237

The vulnerability allows unauthorized access to deleted pages, potentially leading to exposure of sensitive information and data leakage.

Technical Details of CVE-2018-20237

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The flaw in Atlassian Confluence Server and Data Center allows authenticated users to retrieve deleted pages through the word export functionality.

Affected Systems and Versions

Product: Confluence Server
Vendor: Atlassian
Versions Affected: < 6.13.1 (unspecified/custom)
Product: Confluence Data Center
Vendor: Atlassian
Versions Affected: < 6.13.1 (unspecified/custom)

Exploitation Mechanism

The vulnerability can be exploited by a logged-in user to access and download deleted pages using the word export feature.

Mitigation and Prevention

Protecting systems from CVE-2018-20237 is crucial to prevent unauthorized access and data exposure.

Immediate Steps to Take

Upgrade Atlassian Confluence Server and Data Center to version 6.13.1 or higher.
Monitor user activities and access to sensitive information.
Implement strict access controls and permissions.

Long-Term Security Practices

Regularly review and audit user permissions and access levels.
Conduct security training for users to raise awareness of data security best practices.

Patching and Updates

Apply security patches and updates provided by Atlassian to address the vulnerability and enhance system security.