Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS04NDRtLWNwcjktamNtaM0XLQ

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

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.

Permalink: https://github.com/advisories/GHSA-844m-cpr9-jcmh
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS04NDRtLWNwcjktamNtaM0XLQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 6.2
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:H

Identifiers: GHSA-844m-cpr9-jcmh, CVE-2021-41263
References:

• https://github.com/discourse/rails_multisite/security/advisories/GHSA-844m-cpr9-jcmh
• https://github.com/discourse/rails_multisite/commit/c6785cdb5c9277dd2c5ac8d55180dd1ece440ed0
• https://nvd.nist.gov/vuln/detail/CVE-2021-41263
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails_multisite/CVE-2021-41263.yml
• https://github.com/advisories/GHSA-844m-cpr9-jcmh

Repository: https://github.com/discourse/rails_multisite
Blast Radius: 18.2

Affected Packages