製品・ソフトウェアに関する情報

JVN脆弱性詳細

ONLYOFFICE DocumentServer における脆弱性

Title	ONLYOFFICE DocumentServer における脆弱性
Summary	ONLYOFFICE DocumentServer には、不特定の脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	March 1, 2021, midnight
Registration Date	Nov. 18, 2021, 5:47 p.m.
Last Update	Nov. 18, 2021, 5:47 p.m.

Affected System

ONLYOFFICE

Document Server 4.2.0.236 から 5.6.4.13

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2021-25830	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25830
National Vulnerability Database (NVD)
2	CVE-2021-25830	https://nvd.nist.gov/vuln/detail/CVE-2021-25830

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-noinfo	https://www.ipa.go.jp/security/vuln/CWE.html#CWEnoinfo

ベンダー情報

No	Name	URL
GitHub
1	BinaryFileReaderWriter.cpp (#L1918)	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918
2	BinaryFileReaderWriter.cpp (#L241)	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241
3	ONLYOFFICE/core	https://github.com/ONLYOFFICE/core
4	ONLYOFFICE/DocumentServer	https://github.com/ONLYOFFICE/DocumentServer
5	UniFill.cpp (#L343)	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343

Change Log

No	Changed Details	Date of change
1	[2021年11月18日] 掲載	Nov. 18, 2021, 5:47 p.m.

NVD Vulnerability Information

CVE-2021-25830

Summary	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.
Publication Date	March 2, 2021, 1:15 a.m.
Registration Date	March 2, 2021, 10:02 a.m.
Last Update	Nov. 21, 2024, 2:55 p.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:onlyoffice:document_server::::::::		4.2.0.236	5.6.4.13

Related information, measures and tools

No	URL	タグ
1	https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25830	Exploit Third Party Advisory
2	https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25830	Exploit Third Party Advisory
3	https://github.com/ONLYOFFICE/core	Product
4	https://github.com/ONLYOFFICE/core	Product
5	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918	Third Party Advisory
6	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918	Third Party Advisory
7	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241	Third Party Advisory
8	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241	Third Party Advisory
9	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343	Third Party Advisory
10	https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343	Third Party Advisory
11	https://github.com/ONLYOFFICE/DocumentServer	Product
12	https://github.com/ONLYOFFICE/DocumentServer	Product

Common Vulnerabilities List