Bug 2026862 (CVE-2021-44227) - CVE-2021-44227 mailman: CSRF token bypass allows to perform CSRF attacks and admin takeover
Summary: CVE-2021-44227 mailman: CSRF token bypass allows to perform CSRF attacks and ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-44227
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2026866 2026867 2026868 2026870 2026871 2026872 2028499
Blocks: 2026030
TreeView+ depends on / blocked
 
Reported: 2021-11-26 09:52 UTC by Riccardo Schirone
Modified: 2021-12-13 09:49 UTC (History)
6 users (show)

Fixed In Version: mailman 2.1.38
Doc Type: ---
Doc Text:
A Cross-Site Request Forgery (CSRF) attack can be performed in mailman due to a CSRF token bypass. CSRF tokens are not checked against the right type of user when performing admin operations and a token created by a regular user can be used by an admin to perform an admin-level request, effectively bypassing the protection provided by CSRF tokens. A remote attacker with an account on the mailman system can use this flaw to perform a CSRF attack and perform operations on behalf of the victim admin.
Clone Of:
Environment:
Last Closed: 2021-12-13 09:49:08 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4913 0 None None None 2021-12-02 16:21:32 UTC
Red Hat Product Errata RHSA-2021:4915 0 None None None 2021-12-02 16:16:30 UTC
Red Hat Product Errata RHSA-2021:4916 0 None None None 2021-12-02 16:16:12 UTC
Red Hat Product Errata RHSA-2021:5080 0 None None None 2021-12-13 08:33:45 UTC
Red Hat Product Errata RHSA-2021:5081 0 None None None 2021-12-13 08:25:23 UTC

Description Riccardo Schirone 2021-11-26 09:52:00 UTC 
A csrf_token value is not correctly checked against the right type of user when performing an admin operation. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover). Operations performed on the admin, admindb and edithtml pages should be validated only through CSRF tokens that are for the right type of user and not for every unprivileged user of mailman.
Comment 6 Riccardo Schirone 2021-12-02 14:10:29 UTC 
Created mailman tracking bugs for this issue:

Affects: fedora-all [bug 2028499]
Comment 7 errata-xmlrpc 2021-12-02 16:16:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4916 https://access.redhat.com/errata/RHSA-2021:4916
Comment 8 errata-xmlrpc 2021-12-02 16:16:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2021:4915 https://access.redhat.com/errata/RHSA-2021:4915
Comment 9 errata-xmlrpc 2021-12-02 16:21:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:4913 https://access.redhat.com/errata/RHSA-2021:4913
Comment 10 errata-xmlrpc 2021-12-13 08:25:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2021:5081 https://access.redhat.com/errata/RHSA-2021:5081
Comment 11 errata-xmlrpc 2021-12-13 08:33:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:5080 https://access.redhat.com/errata/RHSA-2021:5080
Comment 12 Product Security DevOps Team 2021-12-13 09:49:06 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-44227
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