CVE-2021-32652— Missing permission check on email metadata retrieval
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I. Basic Information for CVE-2021-32652
Vulnerability Information
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Vulnerability Title
Missing permission check on email metadata retrieval
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nextcloud Mail is a mail app for the Nextcloud platform. A missing permission check in Nextcloud Mail before 1.4.3 and 1.8.2 allows another authenticated users to access mail metadata of other users. Versions 1.4.3 and 1.8.2 contain patches for this vulnerability; no workarounds other than the patches are known to exist.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nextcloud 访问控制错误漏洞
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 Mail 1.4.3之前版本，1.8.2版本存在访问控制错误漏洞，该漏洞源于权限检查缺失，允许另一个经过身份验证的用户访问其他用户的邮件元数据。
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 | < 1.4.3 | - |
II. Public POCs for CVE-2021-32652
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|---|
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- https://hackerone.com/reports/1094063x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-32652
Same Patch Batch · nextcloud · 2021-06-01 · 6 CVEs total
| CVE-2021-32656 | 8.6 HIGH | Trusted servers exchange can be triggered by attacker |
| CVE-2021-32654 | 8.1 HIGH | Attacker can obtain write access to any federated share/public link |
| CVE-2021-32657 | 4.3 MEDIUM | Malicious user could break user administration page |
| CVE-2021-32655 | 3.5 LOW | Files Drop public link can be added as federated share |
| CVE-2021-32653 | 2.7 LOW | Default settings leak federated cloud ID to lookup server of all users |
IV. Related Vulnerabilities
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V. Comments for CVE-2021-32652
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