8.5

CVE-2023-48239

Exploit

Nextcloud Server users can make external storage mount points inaccessible for other users

Users can make external storage mount points inaccessible for other users

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Server and starting in version 20.0.0 and prior to versions 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Enterprise Server, a malicious user could update any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud Server 25.0.13, 26.0.8, and 27.1.3 and Nextcloud Enterprise Server is upgraded to 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 contain a patch for this issue. As a workaround, disable app files_external. This workaround also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.
Mögliche Gegenmaßnahme
Server: * Disable app files_external - Also makes the external storage inaccessible but retains the configurations until a patched version has been deployed
Enterprise Server: * Disable app files_external - Also makes the external storage inaccessible but retains the configurations until a patched version has been deployed
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 20.0.0 < 20.0.14.16
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 21.0.0 < 21.0.9.13
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 22.0.0 < 22.2.10.15
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 23.0.0 < 23.0.12.12
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 24.0.0 < 24.0.12.8
Nextcloud ≫ Nextcloud Server SwEdition- Version >= 25.0.0 < 25.0.13
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 25.0.0 < 25.0.13
Nextcloud ≫ Nextcloud Server SwEdition- Version >= 26.0.0 < 26.0.8
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 26.0.0 < 26.0.8
Nextcloud ≫ Nextcloud Server SwEdition- Version >= 27.0.0 < 27.1.3
Nextcloud ≫ Nextcloud Server SwEditionenterprise Version >= 27.0.0 < 27.1.3
VulnDex Vulnerability Enrichment
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Weitere Schwachstelleninformationen
SystemNextcloud
≫
Produkt Server
Version >= 25.0.0, < 25.0.13
Version >= 26.0.0, < 26.0.8
Version >= 27.0.0, < 27.1.3
SystemNextcloud
≫
Produkt Enterprise Server
Version >= 20.0.0, < 20.0.14.16
Version >= 21.0.0, < 21.0.9.13
Version >= 22.0.0, < 22.2.10.15
Version >= 23.0.0, < 23.0.12.12
Version >= 24.0.0, < 24.0.12.8
Version >= 25.0.0, < 25.0.13
Version >= 26.0.0, < 26.0.8
Version >= 27.0.0, < 27.1.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.58% 0.685
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 2.8 4.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
security-advisories@github.com 8.5 3.1 4.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.