CVE-2020-8182 : Vulnerability Insights and Analysis

Nextcloud Deck 0.8.0 has an improper access control vulnerability that allows attackers to reshare boards with higher permissions than they originally had.

Understanding CVE-2020-8182

This CVE involves an access control issue in Nextcloud Deck version 0.8.0.

What is CVE-2020-8182?

The vulnerability in Nextcloud Deck 0.8.0 enables malicious actors to reshare boards with elevated permissions.

The Impact of CVE-2020-8182

The vulnerability allows attackers to share boards with more permissions than they were granted, potentially leading to unauthorized access and data compromise.

Technical Details of CVE-2020-8182

Nextcloud Deck 0.8.0 vulnerability details.

Vulnerability Description

Type: Improper Access Control (CWE-284)
Description: Attackers can reshare boards with higher permissions than assigned.

Affected Systems and Versions

Product: Nextcloud Deck
Version: 0.8.0
Fixed Version: 0.8.1

Exploitation Mechanism

Attackers exploit the access control flaw to reshare boards with escalated permissions.

Mitigation and Prevention

Protecting systems from CVE-2020-8182.

Immediate Steps to Take

Update Nextcloud Deck to version 0.8.1 to mitigate the vulnerability.
Review and adjust board sharing permissions to ensure proper access control.

Long-Term Security Practices

Regularly monitor and audit access control settings in Nextcloud Deck.
Educate users on proper board sharing practices to prevent unauthorized access.

Patching and Updates

Apply patches and updates promptly to address security vulnerabilities in Nextcloud Deck.