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CVE-2024-37312— Nextcloud user_oidc app's ID4me feature is available even when disabled

Quick assessment

Affected
nextcloud security-advisories
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于缺少访问控制，攻击者可以注册一个帐户，最终获得所有注册用户可用的数据的访问权限。

CVSS 6.3 · Medium EPSS 0.64% · P49

Possible ATT&CK Techniques 1 AI

T1136 · Create Account
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I. Basic Information for CVE-2024-37312

Vulnerability Information
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Vulnerability Title
Nextcloud user_oidc app's ID4me feature is available even when disabled
Source: CVE Program / CVE List V5
Vulnerability Description
user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
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存在安全漏洞，该漏洞源于缺少访问控制，攻击者可以注册一个帐户，最终获得所有注册用户可用的数据的访问权限。
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 <= 1.3.6 -

II. Public POCs for CVE-2024-37312

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III. Intelligence Information for CVE-2024-37312

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Patches & Fixes for CVE-2024-37312 (1)

Vendor Advisories for CVE-2024-37312 (1)

Other References for CVE-2024-37312 (1)

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-2024-37886 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
CVE-2024-37887 3.5 LOW Nextcloud Server's events information leaked with shared calendars on recurrence exception

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-284

V. Comments for CVE-2024-37312

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