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CVE-2021-25830

CRITICAL

9.8

Description

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/1/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

onlyoffice:document_server

References

https://github.com/ONLYOFFICE/DocumentServer(cve@mitre.org)

https://github.com/ONLYOFFICE/core(cve@mitre.org)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918(cve@mitre.org)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241(cve@mitre.org)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343(cve@mitre.org)

https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25830(cve@mitre.org)

https://github.com/ONLYOFFICE/DocumentServer(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ONLYOFFICE/core(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25830(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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