CVE-2024-22403

Description

Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.

CVSS v3.1 Score

3.0

LOW

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

Weakness Type (CWE)

CWE-613 CWE-613

Affected Products

Vendor	Product	Versions
nextcloud	nextcloud_server	< 28.0.0

References

Advisories & Patches

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36 https://github.com/nextcloud/server/pull/40766 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36 https://github.com/nextcloud/server/pull/40766

Other References

https://hackerone.com/reports/1784162 https://lists.fedoraproject.org/archives/list/[email protected]/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/ https://hackerone.com/reports/1784162 https://lists.fedoraproject.org/archives/list/[email protected]/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/

Frequently Asked Questions

What is CVE-2024-22403? +

Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability. It has a CVSS v3.1 base score of 3.0 (LOW).

How severe is CVE-2024-22403? +

CVE-2024-22403 has a CVSS v3.1 score of 3.0 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2024-22403? +

CVE-2024-22403 affects products from nextcloud, specifically: nextcloud_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-22403? +

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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