CVE-2024-22212: global site Missing Auth — Fix

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.

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CVSS v3.1 Score

9.6

CRITICAL

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

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor	Product	Versions
nextcloud	global_site_selector	1.1.0 — 1.4.1
nextcloud	global_site_selector	2.0.0 — 2.1.2
nextcloud	global_site_selector	2.2.0 — 2.3.4
nextcloud	global_site_selector	2.4.0 — 2.4.5

References

Advisories & Patches

https://github.com/nextcloud/globalsiteselector/commit/ab5da57190d5bbc79079ce4109b6bcccccd893ee https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vj5q-f63m-wp77 https://github.com/nextcloud/globalsiteselector/commit/ab5da57190d5bbc79079ce4109b6bcccccd893ee https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vj5q-f63m-wp77

Other References

https://hackerone.com/reports/2248689 https://hackerone.com/reports/2248689

Frequently Asked Questions

What is CVE-2024-22212? +

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. It has a CVSS v3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2024-22212? +

CVE-2024-22212 has a CVSS v3.1 score of 9.6 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-22212? +

CVE-2024-22212 affects products from nextcloud, specifically: global_site_selector. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-22212? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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