Incorrect Access Control in ONLYOFFICE Document Editor
CVE-2021-43445

9.8CRITICAL

Key Information:

Vendor

Onlyoffice

Status
Server
Vendor
CVE Published:
23 January 2023

What is CVE-2021-43445?

The ONLYOFFICE Document Editor is vulnerable due to Incorrect Access Control affecting its web socket service. Attackers can leverage a default JWT signing key to authenticate without appropriate validation, potentially leading to unauthorized access and exploitation of sensitive document functionalities.

References

https://github.com/ONLYOFFICE/server
https://www.onlyoffice.com/
https://labs.nettitude.com/blog/exploiting-onlyoffice-web...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.
CVE-2021-43445 : Incorrect Access Control in ONLYOFFICE Document Editor