Improper Authentication Affecting matrix-synapse package, versions <1.90.0-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-MATRIXSYNAPSE-5668842
- published 7 Jun 2023
- disclosed 6 Jun 2023
Introduced: 6 Jun 2023
CVE-2023-32682 Open this link in a new tabHow to fix?
Upgrade Debian:unstable matrix-synapse to version 1.90.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream matrix-synapse package and not the matrix-synapse package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the jwt_config.enabled configuration setting. 2. 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. If not using JSON Web Tokens, ensure that deactivated users do not have a password set. This issue has been addressed in version 1.85.0. Users are advised to upgrade.
References
- https://security-tracker.debian.org/tracker/CVE-2023-32682
- https://github.com/matrix-org/synapse/pull/15624
- https://github.com/matrix-org/synapse/pull/15634
- https://github.com/matrix-org/synapse/security/advisories/GHSA-26c5-ppr8-f33p
- https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#create-or-modify-account
- https://matrix-org.github.io/synapse/latest/jwt.html
- https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#password_config
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2/