CVE-2021-33828

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The files_antivirus component before 1.0.0 for ownCloud mishandles the protection mechanism by which malicious files (that have been uploaded to a public share) are supposed to be deleted upon detection.

El componente files_antivirus versiones anteriores a 1.0.0 para ownCloud, maneja inapropiadamente el mecanismo de protección por el cual se supone que los archivos maliciosos (que han sido subidos a un recurso compartido público) son eliminados al ser detectados

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-03 CVE Reserved
2022-01-15 CVE Published
2023-08-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://doc.owncloud.com/server/admin_manual/release_notes.html	2022-01-21
https://owncloud.com/security-advisories/cve-2021-33828	2022-01-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Owncloud Search vendor "Owncloud"		Files Antivirus Search vendor "Owncloud" for product "Files Antivirus"				< 1.0.0 Search vendor "Owncloud" for product "Files Antivirus" and version " < 1.0.0"		-		Affected