CVE-2024-22403

OAuth2 authorization codes are valid indefinetly in Nextcloud server

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.

Category

3.0
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory github.com Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wppc-f5g8-vx36 vendor advisory
https://github.com/nextcloud/server/pull/40766 patch vendor advisory
https://hackerone.com/reports/1784162 third party advisory permissions required
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S6PN4GVJ5TZUC6WSG4X3ZA3AMPBEKNAX/

Frequently Asked Questions

What is the severity of CVE-2024-22403?
CVE-2024-22403 has been scored as a low severity vulnerability.
How to fix CVE-2024-22403?
To fix CVE-2024-22403, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-22403 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-22403 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-22403?
CVE-2024-22403 affects nextcloud security-advisories.
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