NVD Vulnerability Detail

CVE-2021-25833

Summary	A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71-v5.6.0.21. The file extension is controlled by an attacker through the request data and leads to arbitrary file overwriting. Using this vulnerability, a remote attacker can obtain 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::::::::		4.2.0.71	5.6.0.21

Related information, measures and tools

No	URL	タグ
1	https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833	Exploit Third Party Advisory
2	https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833	Exploit Third Party Advisory
3	https://github.com/ONLYOFFICE/DocumentServer	Product Vendor Advisory
4	https://github.com/ONLYOFFICE/DocumentServer	Product Vendor Advisory
5	https://github.com/ONLYOFFICE/server	Product
6	https://github.com/ONLYOFFICE/server	Product
7	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200	Third Party Advisory
8	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200	Third Party Advisory
9	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283	Third Party Advisory
10	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283	Third Party Advisory
11	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593	Third Party Advisory
12	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-22	パス・トラバーサル	https://cwe.mitre.org/data/definitions/22.html

JVN Vulnerability Information

ONLYOFFICE DocumentServer におけるパストラバーサルの脆弱性

Title	ONLYOFFICE DocumentServer におけるパストラバーサルの脆弱性
Summary	ONLYOFFICE DocumentServer には、パストラバーサル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 4.2.0.71 から 5.6.0.21

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-2021-25833	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25833
National Vulnerability Database (NVD)
2	CVE-2021-25833	https://nvd.nist.gov/vuln/detail/CVE-2021-25833

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-22	https://jvndb.jvn.jp/ja/cwe/CWE-22.html

ベンダー情報

No	Name	URL
GitHub
1	converter.js (#L283)	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L283
2	converter.js (#L593)	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/FileConverter/sources/converter.js#L593
3	converterservice.js (#L200)	https://github.com/ONLYOFFICE/server/blob/v5.6.0.21/DocService/sources/converterservice.js#L200
4	ONLYOFFICE/DocumentServer	https://github.com/ONLYOFFICE/DocumentServer
5	ONLYOFFICE/server	https://github.com/ONLYOFFICE/server

Change Log

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