The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.
CVE-2020-14001 - High Severity Vulnerability
kramdown is yet-another-markdown-parser but fast, pure Ruby, using a strict syntax definition and supporting several common extensions.
Library home page: https://rubygems.org/gems/kramdown-1.17.0.gem
Path to dependency file: /circleci-docs/Gemfile.lock
Path to vulnerable library: /var/lib/gems/2.3.0/cache/kramdown-1.17.0.gem
Dependency Hierarchy: - jekyll-sitemap-1.3.0.gem (Root Library) - jekyll-3.8.5.gem - :x: **kramdown-1.17.0.gem** (Vulnerable Library)
The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.
Publish Date: 2020-07-17
URL: CVE-2020-14001
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14001
Release Date: 2020-07-17
Fix Resolution: kramdown - 2.3.0
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