Bug 2213001 (CVE-2023-32682) - CVE-2023-32682 matrix-synapse: Improper checks for deactivated users during login
Summary: CVE-2023-32682 matrix-synapse: Improper checks for deactivated users during l...
Alias: CVE-2023-32682
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2213003
Blocks: 2212998
TreeView+ depends on / blocked
Reported: 2023-06-06 20:19 UTC by Zack Miele
Modified: 2023-06-07 04:30 UTC (History)
0 users

Fixed In Version: matrix-synapse 1.85.0
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Clone Of:
Last Closed: 2023-06-07 04:30:27 UTC

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Description Zack Miele 2023-06-06 20:19:56 UTC
It may be possible for a deactivated user to login when using uncommon configurations.

This only applies if any of the following are true:

JSON Web Tokens are enabled for login via the jwt_config.enabled configuration setting
The local password database is enabled via the password_config.enabled and password_config.localdb_enabled configuration settings and a user's password is updated via an admin API after a user is deactivated.
Note that the local password database is enabled by default, but it is uncommon to set a user's password after they've been deactivated.

Installations that are configured to only allow login via Single Sign-On (SSO) via CAS, SAML or OpenID Connect (OIDC); or via an external password provider (e.g. LDAP) are not affected.


Comment 1 Zack Miele 2023-06-06 20:20:11 UTC
Created matrix-synapse tracking bugs for this issue:

Affects: fedora-all [bug 2213003]

Comment 2 Product Security DevOps Team 2023-06-07 04:30:25 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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