CVE-2022-24888 Information

Description

Nextcloud Server is the file server software for Nextcloud a self-hosted productivity platform. Prior to versions 20.0.14.4 21.0.8 22.2.4 and 23.0.1 it is possible to create files and folders that have leading and trailing \n \r \t and \v characters. The server rejects files and folders that have these characters in the middle of their names so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4 21.0.8 22.2.4 and 23.0.1. There are currently no known workarounds.

CVSS Vector

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

Reference

https://hackerone.com/reports/1402249 https://github.com/nextcloud/server/pull/29895 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w3h6-p64h-q9jp

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3