CVE Vulnerabilities

CVE-2021-22879

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published: Apr 14, 2021 | Modified: Nov 07, 2023
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands. User interaction is needed for exploitation.

Weakness

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Software

Name Vendor Start Version End Version
Desktop Nextcloud * 3.1.3 (excluding)
Nextcloud-desktop Ubuntu groovy *
Nextcloud-desktop Ubuntu hirsute *
Nextcloud-desktop Ubuntu impish *
Nextcloud-desktop Ubuntu kinetic *
Nextcloud-desktop Ubuntu lunar *
Nextcloud-desktop Ubuntu mantic *
Nextcloud-desktop Ubuntu trusty *

Potential Mitigations

References