CVE-2024-22212: Nextcloud global site selector authentication bypass

Description

Nextcloud Global Site Selector is a tool which allows you to run multiple small Nextcloud instances and redirect users to the right server. A problem in the password verification method allows an attacker to authenticate as another user. It is recommended that the Nextcloud Global Site Selector is upgraded to version 1.4.1, 2.1.2, 2.3.4 or 2.4.5. There are no known workarounds for this issue.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.8% · higher than 55% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

SE

security-advisories · nextcloud

>= 1.1.0, < 1.4.1; >= 2.0.0, < 2.1.2; >= 2.2.0, < 2.3.4; >= 2.4.0, < 2.4.5 · source: vendor

GS

Global Site Selector · Nextcloud

1.1.0 before 1.4.1; 2.0.0 before 2.1.2; 2.2.0 before 2.3.4; 2.4.0 before 2.4.5 · source: NVD