Upstream information

CVE-2021-32688 at MITRE

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: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores
  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
CVSS v3 Scores
  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
Access Vector Network
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1188250 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 12
  • nextcloud >= 20.0.11-28.1
  • nextcloud-apache >= 20.0.11-28.1
 Patchnames:
openSUSE-2021-1068
SUSE Package Hub 15 SP1
  • nextcloud >= 20.0.11-bp151.3.15.1
  • nextcloud-apache >= 20.0.11-bp151.3.15.1
 Patchnames:
openSUSE-2021-1068
SUSE Package Hub 15 SP2
  • nextcloud >= 20.0.11-bp152.2.9.1
  • nextcloud-apache >= 20.0.11-bp152.2.9.1
 Patchnames:
openSUSE-2021-1068
SUSE Package Hub 15 SP3
  • nextcloud >= 20.0.11-bp153.2.3.1
  • nextcloud-apache >= 20.0.11-bp153.2.3.1
 Patchnames:
openSUSE-2021-1068
openSUSE Leap 15.2
  • nextcloud >= 20.0.11-lp152.3.9.1
  • nextcloud-apache >= 20.0.11-lp152.3.9.1
 Patchnames:
openSUSE-2021-1068
openSUSE Leap 15.3
  • nextcloud >= 20.0.11-bp153.2.3.1
  • nextcloud-apache >= 20.0.11-bp153.2.3.1
 Patchnames:
openSUSE-2021-1068