CVE-2020-8161

Published: 2 July 2020

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.

From the Ubuntu Security Team

It was discovered that Rack incorrectly handled certain paths. An attacker could possibly use this issue to obtain sensitive information.

Priority

Cvss 3 Severity Score

8.6

Score breakdown

Status

Package	Release	Status
ruby-rack Launchpad, Ubuntu, Debian	bionic	Released (1.6.4-4ubuntu0.2)
	eoan	Ignored (end of life)
	focal	Released (2.0.7-2ubuntu0.1)
	groovy	Not vulnerable (2.1.1-5)
	hirsute	Not vulnerable (2.1.1-5)
	impish	Not vulnerable (2.1.1-5)
	jammy	Not vulnerable (2.1.1-5)
	trusty	Released (1.5.2-3+deb8u3) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (1.5.2-3+deb8u3, 1.6.4-4+deb9u2, 2.1.1-5, 2.1.3)
	xenial	Released (1.6.4-3ubuntu0.2)
	Patches: upstream: https://github.com/rack/rack/commit/dddb7ad18ed79ca6ab06ccc417a169fde451246e upstream: https://github.com/rack/rack/commit/e7ba1b0557d3ad97af1ef113bbeb5f27417983fa

Severity score breakdown

Parameter	Value
Base score	8.6
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

References

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