CVE-2023-28623: fallo de gravedad media en zulip
Unauthorized user can register an account in specific configurations in Zulip
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.5epss 0.5%
Zulip is an open-source team collaboration tool with unique topic-based threading. In the event that 1: `ZulipLDAPAuthBackend` and an external authentication backend (any aside of `ZulipLDAPAuthBackend` and `EmailAuthBackend`) are the only ones enabled in `AUTHENTICATION_BACKENDS` in `/etc/zulip/settings.py` and 2: The organization permissions don't require invitations to join. An attacker can create a new account in the organization with an arbitrary email address in their control that's not in the organization's LDAP directory. The impact is limited to installations which have this specific combination of authentication backends as described above in addition to having `Invitations are required for joining this organization` organization permission disabled. This issue has been addressed in version 6.2. Users are advised to upgrade. Users unable to upgrade may enable the `Invitations are required for joining this organization` organization permission to prevent this issue.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Productos afectados
zulip · zulipCVEs relacionadas — zulip
En el mismo producto, de las más peligrosas a las menos.
CVE-2021-43799HIGHRabbitMQ exposes ports with weak default secrets in Zulip ServerEPSS 5.4%CVE-2021-41115MEDIUMRegular expression denial-of-service in ZulipEPSS 1.7%CVE-2022-21706HIGHMulti-use invitations can grant access to other organizations in ZulipEPSS 1.2%CVE-2022-24751MEDIUMRace condition in ZulipEPSS 1.0%CVE-2022-31134MEDIUMZulip Server public data export contains attachments that are non-publicEPSS 0.9%CVE-2022-31168MEDIUMZulip Server insufficient authorization for changing bot rolesEPSS 0.8%