CVE-2021-37617

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. The Nextcloud Desktop Client invokes its uninstaller script when being installed to make sure there are no remnants of previous installations. In versions 3.0.3 through 3.2.4, the Client searches the `Uninstall.exe` file in a folder that can be written by regular users. This could lead to a case where a malicious user creates a malicious `Uninstall.exe`, which would be executed with administrative privileges on the Nextcloud Desktop Client installation. This issue is fixed in Nextcloud Desktop Client version 3.3.0. As a workaround, do not allow untrusted users to create content in the `C:\` system folder and verify that there is no malicious `C:\Uninstall.exe` file on the system.
References
Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*

History

25 Oct 2022, 16:18

Type Values Removed Values Added
CWE CWE-426 CWE-427

24 Aug 2021, 15:13

Type Values Removed Values Added
References (MISC) https://hackerone.com/reports/1240749 - (MISC) https://hackerone.com/reports/1240749 - Permissions Required, Third Party Advisory
References (CONFIRM) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v - (CONFIRM) https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v - Third Party Advisory
References (MISC) https://github.com/nextcloud/desktop/pull/3497 - (MISC) https://github.com/nextcloud/desktop/pull/3497 - Patch, Third Party Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 4.4
v3 : 7.3
CPE cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*
CWE CWE-426

18 Aug 2021, 18:28

Type Values Removed Values Added
New CVE

Information

Published : 2021-08-18 18:15

Updated : 2023-12-10 13:55


NVD link : CVE-2021-37617

Mitre link : CVE-2021-37617

CVE.ORG link : CVE-2021-37617


JSON object : View

Products Affected

nextcloud

  • desktop
CWE
CWE-427

Uncontrolled Search Path Element

CWE-426

Untrusted Search Path