CVE-2021-41241
CVSS V2 Medium 4
CVSS V3 Medium 4.3
Description
Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.
Overview
- CVE ID
- CVE-2021-41241
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-08T19:15:07
- Last Modified Date
- 2022-10-25T20:44:56
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | 1 | OR | 20.0.14 | |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | 1 | OR | 21.0.0 | 21.0.6 |
| cpe:2.3:a:nextcloud:nextcloud_server:22.2.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 4.3
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/nextcloud/groupfolders/issues/1692 | Issue Tracking Patch Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m4wp-r357-4q94 | Issue Tracking Third Party Advisory |
| https://github.com/nextcloud/server/pull/29362 | Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202208-17 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-41241 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41241 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:46:05 | Added to TrackCVE | |||
| 2022-12-06 11:31:01 | 2022-03-08T19:15Z | 2022-03-08T19:15:07 | CVE Published Date | updated |
| 2022-12-06 11:31:01 | 2022-10-25T20:44:56 | CVE Modified Date | updated | |
| 2022-12-06 11:31:01 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 11:31:06 | References | updated |