CVE-2017-0884
First published: Wed Apr 05 2017(Updated: )
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Server | <9.0.55 | |
| Nextcloud Server | >=10.0.0<10.0.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-0884?
CVE-2017-0884 has been rated as a moderate severity vulnerability due to the potential for unauthorized folder creation in restricted areas.
How do I fix CVE-2017-0884?
To resolve CVE-2017-0884, update your Nextcloud Server to versions 9.0.55 or later, or 10.0.2 or later.
Who is affected by CVE-2017-0884?
CVE-2017-0884 affects all versions of Nextcloud Server prior to 9.0.55 and those in the 10.0.0 to 10.0.1 range.
What vulnerability type is CVE-2017-0884?
CVE-2017-0884 is classified as a permission and access control issue due to logical errors in the file caching layer.
Can CVE-2017-0884 be exploited by unauthenticated users?
No, exploitation of CVE-2017-0884 requires authentication, allowing only authenticated adversaries to exploit the vulnerability.
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