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Vulnerability DatabaseCVE-2020-8293

CVE-2020-8293: 
Linux openSUSE vulnerability analysis and mitigation

Overview

A missing input validation vulnerability was identified in Nextcloud Server affecting versions before 20.0.2, 19.0.5, and 18.0.11. The vulnerability was assigned CVE-2020-8293 and was discovered in January 2020 (CVE Mitre).

Technical details

The vulnerability is classified as CWE-400, which relates to uncontrolled resource consumption. The issue stems from a missing input validation mechanism in the workflow rules functionality of Nextcloud Server (NVD CWE).

Impact

This vulnerability allows users to store unlimited data in workflow rules, which can cause significant server load and potentially lead to Denial of Service (DoS) conditions during subsequent interactions and usage of these rules (CVE Mitre).

Exploitability

The vulnerability requires user access to the Nextcloud Server to exploit the workflow rules functionality. The issue was reported through HackerOne's bug bounty program (HackerOne Report).

Mitigation and workarounds

The vulnerability has been patched in Nextcloud Server versions 20.0.2, 19.0.5, and 18.0.11. Users are advised to upgrade to these versions or later to mitigate the vulnerability (Nextcloud Advisory).

Additional resources

Source: This report was generated using AI

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