CVE-2023-48306CWE-918

Nextcloud Server DNS pin middleware can be tricked into DNS rebinding allowing SSRF

Medium · published November 21, 2023

CVSS v3.1
5.0
EPSS
1%
Percentile
56.0
In the wild
Unconfirmed
What it is

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and starting in version 22.0.0 and prior to versions 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Enterprise Server, the DNS pin middleware was vulnerable to DNS rebinding allowing an attacker to perform SSRF as a final result. Nextcloud Server 25.0.11, 26.0.6, and 27.1.0 and Nextcloud Enterprise Server 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 contain patches for this issue. No known workarounds are available.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00797 · 56.0th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2023-11-21T22:20Z
EPSS history
Timeline
  • 21 NOV 22:20Z
    Nextcloud Server DNS pin middleware can be tricked into DNS rebinding allowing SSRF
    cvelistv5