CVE-2023-48306

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

State: Published
Severity: 5.0 Medium
Published: Nov 21, 2023
Updated: Aug 2, 2024
Reserved: Nov 14, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.0 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
security-advisoriesnextcloud	>= 22.0.0, < 22.2.10.16Affected >= 23.0.0, < 23.0.12.11Affected >= 24.0.0, < 24.0.12.7Affected >= 25.0.0, < 25.0.11Affected >= 26.0.0, < 26.0.6Affected >= 27.0.0, < 27.1.0Affected

References

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