Skip to content

Rails Multisite secure/signed cookies share secrets between sites in a multi-site application

Moderate severity GitHub Reviewed Published Nov 15, 2021 in discourse/rails_multisite • Updated May 4, 2023

Package

bundler rails_multisite (RubyGems)

Affected versions

< 4.0.0

Patched versions

4.0.0

Description

Impact

This vulnerability impacts any Rails applications using rails_multisite alongside Rails' signed/encrypted cookies. Depending on how the application makes use of these cookies, it may be possible for an attacker to re-use cookies on different 'sites' within a multi-site Rails application.

Patches

The issue has been patched in v4 of the rails_multisite gem. Note that this upgrade will invalidate all previous signed/encrypted cookies. The impact of this invalidation will vary based on the application architecture.

References

@jomaxro jomaxro published to discourse/rails_multisite Nov 15, 2021
Reviewed Nov 15, 2021
Published to the GitHub Advisory Database Nov 15, 2021
Published by the National Vulnerability Database Nov 15, 2021
Last updated May 4, 2023

Severity

Moderate
6.2
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2021-41263

GHSA ID

GHSA-844m-cpr9-jcmh

Source code

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