Upstream information
Description
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server supports application specific tokens for authentication purposes. These tokens are supposed to be granted to a specific applications (e.g. DAV sync clients), and can also be configured by the user to not have any filesystem access. Due to a lacking permission check, the tokens were able to change their own permissions in versions prior to 19.0.13, 20.0.11, and 21.0.3. Thus fileystem limited tokens were able to grant themselves access to the filesystem. The issue is patched in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds aside from upgrading.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 7.5 |
Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Access Vector | Network |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
National Vulnerability Database | |
---|---|
Base Score | 8.8 |
Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality Impact | High |
Integrity Impact | High |
Availability Impact | High |
CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- openSUSE-SU-2021:1068-1, published Wed Jul 21 03:40:09 2021
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE Package Hub 12 |
| Patchnames: openSUSE-2021-1068 |
SUSE Package Hub 15 SP1 |
| Patchnames: openSUSE-2021-1068 |
SUSE Package Hub 15 SP2 |
| Patchnames: openSUSE-2021-1068 |
SUSE Package Hub 15 SP3 |
| Patchnames: openSUSE-2021-1068 |
openSUSE Leap 15.2 |
| Patchnames: openSUSE-2021-1068 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE-2021-1068 |
SUSE Timeline for this CVE
CVE page created: Sun Nov 7 13:15:19 2021CVE page last modified: Tue May 23 18:08:18 2023