CVE-2021-37631— Nextcloud安全漏洞
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I. CVE-2021-37631の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
Shenlongの10の質問を表示 ↗ 高度な大規模言語モデル技術を使用していますが、出力には不正確または古い情報が含まれる可能性があります。Shenlongはデータの正確性を確保するよう努めていますが、実際の状況に基づいて検証・判断してください。
脆弱性タイトル
Circle can be accessed by non-Circle members in Nextcloud Deck
ソース: NVD (National Vulnerability Database)
脆弱性説明
Deck is an open source kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. In affected versions the Deck application didn't properly check membership of users in a Circle. This allowed other users in the instance to gain access to boards that have been shared with a Circle, even if the user was not a member of the circle. It is recommended that Nextcloud Deck is upgraded to 1.5.1, 1.4.4 or 1.2.9. If you are unable to update it is advised to disable the Deck plugin.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
通过用户控制密钥绕过授权机制
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Nextcloud安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud存在安全漏洞，该漏洞源于Deck应用程序没有正确地检查Circle中的用户成员。这允许实例中的其他用户访问已与Circle共享的面板内容，即使该用户不是该Circle的成员。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| nextcloud | security-advisories | < 1.2.9 | - |
II. CVE-2021-37631の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
AI生成POCプレミアム
公開POCは見つかりませんでした。
ログインしてAI POCを生成III. CVE-2021-37631のインテリジェンス情報
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- https://hackerone.com/reports/1280931x_refsource_MISC
- https://hackerone.com/reports/1256021x_refsource_MISC
- https://github.com/nextcloud/deck/pull/3217x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-37631
Same Patch Batch · nextcloud · 2021-09-07 · 9 CVEs total
| CVE-2021-32802 | 9.3 CRITICAL | Preview generation used third-party library not suited for user-generated content in Nextc |
| CVE-2021-32800 | 8.1 HIGH | Bypass of Two Factor Authentication in Nextcloud server |
| CVE-2021-37628 | 7.5 HIGH | File Drop can be bypassed using Richdocuments app in nextcloud |
| CVE-2021-37630 | 6.5 MEDIUM | Secret Circle can be joined without approval in Nextcloud Circles |
| CVE-2021-32782 | 5.8 MEDIUM | Cross-Site Scripting in Nextcloud Circles |
| CVE-2021-32801 | 5.5 MEDIUM | Exceptions may have logged Encryption-at-Rest key content in Nextcloud server |
| CVE-2021-32766 | 5.3 MEDIUM | Nextcloud Text app can disclose existence of folders in "File Drop" link share |
| CVE-2021-37629 | 5.3 MEDIUM | Lack of ratelimit on Richdocuments OCS endpoint in nextcloud |
IV. 関連脆弱性
同じ製品: security-advisories
- CVE-2026-28272
Kiteworks Email Protection Gateway has a Cross-site Scriptin - CVE-2026-28271
Kiteworks Core is vulnerable to Server-Side Request Forgery - CVE-2026-28270
Kiteworks Core has an Unrestricted Upload of File with Dange - CVE-2026-28269
Kiteworks Core has an OS Command Injection - CVE-2025-66558
Nextcloud Twofactor WebAuthn app was updated based on public
同じベンダー: nextcloud
- CVE-2025-66558
Nextcloud Twofactor WebAuthn app was updated based on public - CVE-2025-66556
Nextcloud talk allows participants to blindly delete poll dr - CVE-2025-66554
Nextcloud Contacts vulnerable to Stored XSS in contacts app - CVE-2025-66549
Nextcloud Desktop discloses information when attempting to l - CVE-2025-66545
Nextcloud Groupfolders users with read-only permissions for
同じ弱点: CWE-639
- CVE-2026-8196
JeecgBoot mLogin Endpoint LoginController.java authorization - CVE-2026-42291
SysReptor: Read-write access to personal notes by sharing-li - CVE-2026-44400
MailEnable Enterprise Premium < 10.55 Authorization Bypass v - CVE-2026-42279
solidtime: Time entry update endpoint allows cross-organizat - CVE-2026-42277
Onyx: IDOR in /chat/file/{file_id} allows any authenticated
V. CVE-2021-37631へのコメント
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