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Directory traversal in Rack::Directory app bundled with Rack

High severity GitHub Reviewed Published Jul 6, 2020 to the GitHub Advisory Database • Updated Aug 28, 2023

Package

bundler rack (RubyGems)

Affected versions

< 2.1.3

Patched versions

2.1.3

Description

A directory traversal vulnerability exists in rack < 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.

References

Published by the National Vulnerability Database Jul 2, 2020
Reviewed Jul 6, 2020
Published to the GitHub Advisory Database Jul 6, 2020
Last updated Aug 28, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS score

0.268%
(67th percentile)

Weaknesses

CVE ID

CVE-2020-8161

GHSA ID

GHSA-5f9h-9pjv-v6j7

Source code

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