CVE-2021-41263

Secure/signed cookies share secrets between sites in rails_multisite

State: Published
Severity: 8.3 High
Published: Nov 15, 2021
Updated: Aug 4, 2024
Reserved: Sep 15, 2021

Description

rails_multisite provides multi-db support for Rails applications. In affected versions 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. 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.

Scores

CVSS	Score	Vector	Source
3.1	8.3 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-565 Reliance on Cookies without Validation and Integrity Checking

Affected Products

Product	Versions
rails_multisitediscourse	< 4.0.0Affected

References

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