CVE-2021-41263

Published on: 11/15/2021 12:00:00 AM UTC

Last Modified on: 11/19/2021 04:12:00 PM UTC

CVE-2021-41263 - advisory for GHSA-844m-cpr9-jcmh

Source: Mitre Source: Nist Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Certain versions of Rails Multisite from Discourse contain the following vulnerability:

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.

  • CVE-2021-41263 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo discourse - rails_multisite version < 4.0.0

CVSS3 Score: 8.8 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 6 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM SINGLE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
SECURITY: Vary the encrypted/signed cookie salts per-hostname (#26) · discourse/[email protected] · GitHub github.com
text/html
URL Logo MISC github.com/discourse/rails_multisite/commit/c6785cdb5c9277dd2c5ac8d55180dd1ece440ed0
Secure/signed cookies share secrets between sites in a multi-site application · Advisory · discourse/rails_multisite · GitHub github.com
text/html
URL Logo CONFIRM github.com/discourse/rails_multisite/security/advisories/GHSA-844m-cpr9-jcmh

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationDiscourseRails MultisiteAllAllAllAll
  • cpe:2.3:a:discourse:rails_multisite:*:*:*:*:*:ruby:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-41263 : rails_multisite provides multi-db support for Rails applications. In affected versions this vulner… twitter.com/i/web/status/1… 2021-11-15 20:14:00
Twitter Icon @rubylandnews RubySec ➜ CVE-2021-41263 (rails_multisite): Secure/signed cookies share secrets between sites in a multi-site… rubysec.com/advisories/CVE… 2021-11-16 02:20:24
Twitter Icon @SecRiskRptSME RT: CVE-2021-41263 rails_multisite provides multi-db support for Rails applications. In affected versions this vul… twitter.com/i/web/status/1… 2021-11-16 08:33:24
© CVE.report 2022 Twitter Nitter Twitter Viewer |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report