CVE-2021-43447

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An authentication bypass in the document editor allows attackers to edit documents without authentication.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-08 CVE Reserved
2023-01-23 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-306: Missing Authentication for Critical Function

CAPEC

References (3)

URL	Tag	Source
https://github.com/ONLYOFFICE/server	Third Party Advisory

URL	Date	SRC
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.onlyoffice.com	2023-08-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Onlyoffice Search vendor "Onlyoffice"		Server Search vendor "Onlyoffice" for product "Server"				<= 7.0.0.49 Search vendor "Onlyoffice" for product "Server" and version " <= 7.0.0.49"		-		Affected