CVE-2024-37887— Nextcloud Server's events information leaked with shared calendars on recurrence exceptions
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I. Basic Information for CVE-2024-37887
Vulnerability Information
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Vulnerability Title
Nextcloud Server's events information leaked with shared calendars on recurrence exceptions
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nextcloud Server is a self hosted personal cloud system. Private shared calendar events' recurrence exceptions can be read by sharees. It is recommended that the Nextcloud Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1 and that the Nextcloud Enterprise Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nextcloud 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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 Server存在安全漏洞，该漏洞源于共享者可以读取私人共享日历事件的重复例外情况。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| nextcloud | security-advisories | >= 27.0.0, < 27.1.10 | - |
II. Public POCs for CVE-2024-37887
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|---|
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- https://hackerone.com/reports/2479325x_refsource_MISC
- https://github.com/nextcloud/server/pull/45309x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2024-37887
Same Patch Batch · nextcloud · 2024-06-14 · 12 CVEs total
| CVE-2024-37882 | 8.1 HIGH | Nextcloud Server can reshare read&share only folder with more permissions |
| CVE-2024-37313 | 7.3 HIGH | Nextcloud server allows the by-pass the second factor |
| CVE-2024-37312 | 6.3 MEDIUM | Nextcloud user_oidc app's ID4me feature is available even when disabled |
| CVE-2024-37886 | 5.4 MEDIUM | Nextcloud user_oidc's ID4me does not validate signature or expiration |
| CVE-2024-37316 | 4.6 MEDIUM | Nextcloud Calendar's event create can create attachments that link to other websites |
| CVE-2024-37317 | 4.6 MEDIUM | Nextcloud Notes app can be tricked into using a received share created before the user log |
| CVE-2024-37883 | 4.3 MEDIUM | Nextcloud Deck can access comments and attachments of deleted cards |
| CVE-2024-37885 | 3.8 LOW | Code injection in Nextcloud Desktop Client for macOS |
| CVE-2024-37314 | 3.5 LOW | Nextcloud Photos' shared albums have no restriction on photo removal |
| CVE-2024-37315 | 3.5 LOW | Nextcloud Server's read-only users can restore old versions |
| CVE-2024-37884 | 3.5 LOW | Nextcloud Server's users can delete old versions of read-only shared files |
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V. Comments for CVE-2024-37887
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