better_errors-2.5.1.gem: 1 vulnerabilities (highest severity is: 8.8) - autoclosed

[mend-for-github-com[bot]]

Vulnerable Library - better_errors-2.5.1.gem

Provides a better error page for Rails and other Rack apps. Includes source code inspection, a live REPL and local/instance variable inspection for all stack frames.

Library home page: https://rubygems.org/gems/better_errors-2.5.1.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /m/ruby/2.7.0/cache/better_errors-2.5.1.gem

Found in HEAD commit: 10b00bba83d518df58b71c164d0be7c229d4b799

Vulnerabilities

CVE	Severity	CVSS	Dependency	Type	Fixed in	Remediation Available
CVE-2021-39197	High	8.8	better_errors-2.5.1.gem	Direct	better_errors - 2.8.0	✅

Details

CVE-2021-39197

### Vulnerable Library - better_errors-2.5.1.gem

Provides a better error page for Rails and other Rack apps. Includes source code inspection, a live REPL and local/instance variable inspection for all stack frames.

Library home page: https://rubygems.org/gems/better_errors-2.5.1.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /m/ruby/2.7.0/cache/better_errors-2.5.1.gem

Dependency Hierarchy: - :x: **better_errors-2.5.1.gem** (Vulnerable Library)

Found in HEAD commit: 10b00bba83d518df58b71c164d0be7c229d4b799

Found in base branch: master

### Vulnerability Details

better_errors is an open source replacement for the standard Rails error page with more information rich error pages. It is also usable outside of Rails in any Rack app as Rack middleware. better_errors prior to 2.8.0 did not implement CSRF protection for its internal requests. It also did not enforce the correct "Content-Type" header for these requests, which allowed a cross-origin "simple request" to be made without CORS protection. These together left an application with better_errors enabled open to cross-origin attacks. As a developer tool, better_errors documentation strongly recommends addition only to the `development` bundle group, so this vulnerability should only affect development environments. Please ensure that your project limits better_errors to the `development` group (or the non-Rails equivalent). Starting with release 2.8.x, CSRF protection is enforced. It is recommended that you upgrade to the latest release, or minimally to "~> 2.8.3". There are no known workarounds to mitigate the risk of using older releases of better_errors.

Publish Date: 2021-09-07

URL: CVE-2021-39197

### CVSS 3 Score Details (8.8)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://github.com/BetterErrors/better_errors/security/advisories/GHSA-w3j4-76qw-wwjm

Release Date: 2021-09-07

Fix Resolution: better_errors - 2.8.0

:rescue_worker_helmet: Automatic Remediation is available for this issue

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:rescue_worker_helmet: Automatic Remediation is available for this issue.

[mend-for-github-com[bot]]

:information_source: This issue was automatically closed by Mend because it is a duplicate of an existing issue: #84

[mend-for-github-com[bot]]

:information_source: This issue was automatically closed by Mend because it is a duplicate of an existing issue: #84