Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings.
References
| Link | Resource |
|---|---|
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gcf3-3wmc-88jr | Third Party Advisory |
| https://github.com/nextcloud/text/pull/1716 | Patch Third Party Advisory |
| https://hackerone.com/reports/1253475 | Permissions Required Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
27 Sep 2022, 15:43
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Nextcloud nextcloud Server
|
|
| CPE | cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* |
14 Sep 2021, 17:28
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 5.0
v3 : 5.3 |
| CPE | cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* | |
| References | (MISC) https://github.com/nextcloud/text/pull/1716 - Patch, Third Party Advisory | |
| References | (CONFIRM) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gcf3-3wmc-88jr - Third Party Advisory | |
| References | (MISC) https://hackerone.com/reports/1253475 - Permissions Required, Third Party Advisory |
07 Sep 2021, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
| Summary | Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings. |
07 Sep 2021, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-09-07 21:15
Updated : 2023-12-10 13:55
NVD link : CVE-2021-32766
Mitre link : CVE-2021-32766
CVE.ORG link : CVE-2021-32766
JSON object : View
Products Affected
nextcloud
- nextcloud_server
CWE
CWE-209
Generation of Error Message Containing Sensitive Information