CVE-2021-41239

Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx	Issue Tracking Third Party Advisory
https://github.com/nextcloud/server/issues/27122	Issue Tracking Patch Third Party Advisory
https://github.com/nextcloud/server/pull/29260	Patch Third Party Advisory
https://security.gentoo.org/glsa/202208-17	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nextcloud:nextcloud_server::::::::
	cpe:2.3:a:nextcloud:nextcloud_server::::::::
	cpe:2.3:a:nextcloud:nextcloud_server:22.2.0:::::::*

History

No history.

Information

Published : 2022-03-08 18:15

Updated : 2024-02-28 19:09

NVD link : CVE-2021-41239

Mitre link : CVE-2021-41239

CVE.ORG link : CVE-2021-41239

JSON object : View

Products Affected

nextcloud

nextcloud_server

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-862

Missing Authorization

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