CVE-2020-8297 : Vulnerability Insights and Analysis
Learn about CVE-2020-8297 affecting Nextcloud Deck before 1.0.2. Find out how users with duplicate identifiers can access sensitive data and steps to prevent exploitation.
Nextcloud Deck before 1.0.2 has an insecure direct object reference (IDOR) vulnerability that allows users with a duplicate user identifier to access deck data of a previously deleted user.
Understanding CVE-2020-8297
Nextcloud Deck before version 1.0.2 is affected by an IDOR vulnerability, potentially compromising user data.
What is CVE-2020-8297?
The vulnerability in Nextcloud Deck before 1.0.2 allows unauthorized users to access sensitive information by exploiting an insecure direct object reference.
The Impact of CVE-2020-8297
The vulnerability enables users with a duplicate user identifier to view deck data from a previously deleted user, leading to unauthorized access to sensitive information.
Technical Details of CVE-2020-8297
Nextcloud Deck's security flaw is detailed below:
Vulnerability Description
- Insecure Direct Object Reference (IDOR) vulnerability in Nextcloud Deck before 1.0.2
Affected Systems and Versions
- Product: Nextcloud Deck
- Versions affected: Before 1.0.2
Exploitation Mechanism
- Users with a duplicate user identifier can exploit the vulnerability to access deck data of a previously deleted user.
Mitigation and Prevention
Protect your system from CVE-2020-8297 with the following steps:
Immediate Steps to Take
- Update Nextcloud Deck to version 1.0.2 to mitigate the vulnerability.
- Regularly monitor user identifiers and access to prevent unauthorized data viewing.
Long-Term Security Practices
- Implement user verification processes to prevent duplicate user identifiers.
- Conduct regular security audits to identify and address potential vulnerabilities.
Patching and Updates
- Stay informed about security advisories and promptly apply patches to ensure system security.