CVE-2021-25831 - OpenCVE

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. An attacker must request the conversion of the crafted file from PPTT into PPTX format. Using the chain of two other bugs related to improper string handling, a remote attacker can obtain remote code execution on DocumentServer.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Onlyoffice	Document Server

Configuration 1 [-]

cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/ONLYOFFICE/DocumentServer
https://github.com/ONLYOFFICE/core
https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918
https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241
https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/Fills/BlipFill.cpp#L328
https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25831

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-03-01T15:08:37

Updated: 2024-08-03T20:11:28.475Z

Reserved: 2021-01-22T00:00:00

Link: CVE-2021-25831

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2021-03-01T16:15:14.353

Modified: 2021-03-15T19:53:12.087

Link: CVE-2021-25831

Redhat

No data.

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