CVE-2021-32688 Common Vulnerabilities and Exposures

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: Resolved

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
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 Bugzilla entry: 1188250 [RESOLVED / FIXED]

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	`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

SUSE Timeline for this CVE

CVE page created: Sun Nov 7 13:15:19 2021
CVE page last modified: Tue May 23 18:08:18 2023