CVE-2023-32683

Katalog CVE

CVSS 5.4 · Medium EPSS 0,61%

Kerentanan Incorrect Authorization pada matrix synapse. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.

Rincian

Terbit di NVD

6 Juni 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-863: Incorrect Authorization
CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,61% peluang dieksploitasi; lebih tinggi dari 47,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc mitigasi · patch · advisory vendor
• https://github.com/matrix-org/synapse/pull/15601 patch
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIP...