Remote Code Execution Vulnerability in ONLYOFFICE Document Server
CVE-2020-11534

9.8CRITICAL

Key Information:

Vendor

Onlyoffice

Status
Document Server
Vendor
CVE Published:
15 April 2020

What is CVE-2020-11534?

A vulnerability has been identified in ONLYOFFICE Document Server version 5.5.0 that allows attackers to exploit the NSFileDownloader function. This exploit occurs when a maliciously crafted .docx file is processed, permitting the execution of arbitrary commands on the server. Attackers can leverage this flaw to pass parameters to binaries like curl or wget, facilitating unauthorized remote code execution, thereby posing a significant risk to server integrity.

References

https://github.com/ONLYOFFICE/DocumentServer/blob/master/...
x_refsource_MISC
https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda50...
x_refsource_MISC

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
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CVE-2020-11534 : Remote Code Execution Vulnerability in ONLYOFFICE Document Server