CVE-2022-24888

Possible Injection in Nextcloud Server

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1, it is possible to create files and folders that have leading and trailing
, \r, \t, and \v characters. The server rejects files and folders that have these characters in the middle of their names, so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1. There are currently no known workarounds.

Nextcloud Server es el software de servidor de archivos de Nextcloud, una plataforma de productividad autoalojada. En versiones anteriores a 20.0.14.4, 21.0.8, 22.2.4 y 23.0.1, era posible crear archivos y carpetas que contuvieran caracteres \N iniciales y finales. El servidor rechaza los archivos y carpetas que presentan estos caracteres en medio de sus nombres, por lo que esto podría ser una oportunidad para la inyección. Este problema ha sido corregido en versiones 20.0.14.4, 21.0.8, 22.2.4 y 23.0.1. Actualmente no se presentan medidas de mitigación conocidas

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-02-10 CVE Reserved
2022-04-27 CVE Published
2023-11-18 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (3)

URL	Tag	Source
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w3h6-p64h-q9jp	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/server/pull/29895	2023-07-06

URL	Date	SRC
https://security.gentoo.org/glsa/202208-17	2023-07-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				< 20.0.14.4 Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 20.0.14.4"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 21.0.0 < 21.0.8 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 21.0.0 < 21.0.8"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 22.0.0 < 22.2.4 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 22.0.0 < 22.2.4"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 23.0.0 < 23.0.1 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 23.0.0 < 23.0.1"		-		Affected