CVE-2023-28623

Katalog CVE

CVSS 3.7 · Low EPSS 0,53%

Kerentanan Improper Authorization pada zulip. Skor CVSS 3.1 3.7 (Low) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

19 Mei 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

3.7 (Low), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-285: Improper Authorization
CWE-862: Missing Authorization

EPSS (30 hari)

0,53% peluang dieksploitasi; lebih tinggi dari 43,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/zulip/zulip/commit/3df1b4dd7c210c21deb6f829df19412b74573f8d patch · advisory pihak ketiga
• https://github.com/zulip/zulip/security/advisories/GHSA-7p62-pjwg-56rv advisory pihak ketiga