Skip to content

Rack allows Percent-encoded cookies to overwrite existing prefixed cookie names

High severity GitHub Reviewed Published Jun 24, 2020 to the GitHub Advisory Database • Updated Aug 28, 2023

Package

bundler rack (RubyGems)

Affected versions

< 2.1.4
>= 2.2.0, < 2.2.3

Patched versions

2.1.4
2.2.3

Description

A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it possible for an attacker to forge a secure or host-only cookie prefix.

References

Published by the National Vulnerability Database Jun 19, 2020
Reviewed Jun 24, 2020
Published to the GitHub Advisory Database Jun 24, 2020
Last updated Aug 28, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses

CVE ID

CVE-2020-8184

GHSA ID

GHSA-j6w9-fv6q-3q52

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.