CVE-2021-22879

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Nextcloud Desktop Client versiones anteriores a 3.1.3, es vulnerable a una inyección de recursos debido a una falta de comprobación de las URL, permitiendo a un servidor malicioso ejecutar comandos remotos. Una interacción del usuario es necesaria para su explotación

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-06 CVE Reserved
2021-04-14 CVE Published
2024-04-17 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-99: Improper Control of Resource Identifiers ('Resource Injection')

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC
https://hackerone.com/reports/1078002	2024-08-03

URL	Date	SRC
https://github.com/nextcloud/desktop/pull/2906	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE	2023-11-07
https://nextcloud.com/security/advisory/?id=NC-SA-2021-008	2023-11-07
https://security.gentoo.org/glsa/202105-37	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Desktop Search vendor "Nextcloud" for product "Desktop"				< 3.1.3 Search vendor "Nextcloud" for product "Desktop" and version " < 3.1.3"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected