A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload limits.
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
CVE-2020-8162 - High Severity Vulnerability
Vulnerable Library - activestorage-6.0.0.gem
Attach cloud and local files in Rails applications.
Library home page: https://rubygems.org/gems/activestorage-6.0.0.gem
Dependency Hierarchy: - rails-6.0.0.gem (Root Library) - :x: **activestorage-6.0.0.gem** (Vulnerable Library)
Found in HEAD commit: ef980180214dbeaba07dbfcc87752fa216d3a34f
Found in base branch: master
Vulnerability Details
A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload limits.
Publish Date: 2020-06-19
URL: CVE-2020-8162
CVSS 3 Score Details (7.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/advisories/GHSA-m42x-37p3-fv5w
Release Date: 2020-06-19
Fix Resolution: 5.2.4.3,6.0.3.1