CVE-2021-21396

Katalog CVE

CVSS 6.5 · Medium EPSS 1,1%

Kerentanan Exposure of Sensitive Information to an Unauthorized Actor pada wire server. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

wire-server is an open-source back end for Wire, a secure collaboration platform. In wire-server from version 2021-02-16 and before version 2021-03-02, the client metadata of all users was exposed in the `GET /users/list-clients` endpoint. The endpoint could be used by any logged in user who could request client details of any other user (no connection required) as far as they can find their User ID. The exposed metadata included id, class, type, location, time, and cookie. A user on a Wire backend could use this endpoint to find registration time and location for each device for a given list of users. As a workaround, remove `/list-clients` from nginx config. This has been fixed in version 2021-03-02.

Rincian

Terbit di NVD

26 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 64,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/wireapp/wire-server/commit/7ba2bf4140282557cf215e0b2c354d4d08cd3421 patch · advisory pihak ketiga
• https://github.com/wireapp/wire-server/security/advisories/GHSA-qx8q-rhq2-rg4j patch · advisory pihak ketiga
• https://github.com/wireapp/wire-server/releases/tag/v2021-03-02 advisory pihak ketiga