CVE-2020-8162 (Medium) detected in activestorage-5.2.4.2.gem

[mend-bolt-for-github[bot]]

CVE-2020-8162 - Medium Severity Vulnerability

Vulnerable Library - activestorage-5.2.4.2.gem

Attach cloud and local files in Rails applications.

Library home page: https://rubygems.org/gems/activestorage-5.2.4.2.gem

Path to dependency file: /tmp/ws-scm/chaltron/Gemfile.lock

Path to vulnerable library: /var/lib/gems/2.5.0/cache/activestorage-5.2.4.2.gem

Dependency Hierarchy: - rails-5.2.4.2.gem (Root Library) - :x: **activestorage-5.2.4.2.gem** (Vulnerable Library)

Found in HEAD commit: 1b50f621103349895a1a437eea1f48393a237a04

Vulnerability Details

There is a vulnerability in ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user.

Publish Date: 2020-05-31

URL: CVE-2020-8162

CVSS 3 Score Details (5.3)

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: Low - 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: 2020-05-31

Fix Resolution: 5.2.4.3,6.0.3.1

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