CVE-2023-39963— Missing password confirmation when creating app passwords
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I. Basic Information for CVE-2023-39963
Vulnerability Information
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Vulnerability Title
Missing password confirmation when creating app passwords
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
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 Server存在访问控制错误漏洞，该漏洞源于缺少密码确认。
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 | >= 20.0.0, < 20.0.14.15 | - |
II. Public POCs for CVE-2023-39963
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://hackerone.com/reports/2067572x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2023-39963
Same Patch Batch · nextcloud · 2023-08-10 · 10 CVEs total
| CVE-2023-39962 | 7.7 HIGH | Users can delete external storage mount points |
| CVE-2023-39952 | 6.5 MEDIUM | Advanced permissions not respected when copying entire group folders |
| CVE-2023-39958 | 5.8 MEDIUM | Missing brute force protection on password reset token OAuth2 API controller |
| CVE-2023-39953 | 4.8 MEDIUM | Issuer not verified from obtained token in user_oidc |
| CVE-2023-39954 | 3.8 LOW | user_oidc app stores client secret unencrypted in database |
| CVE-2023-39955 | 3.5 LOW | Notes attachment render HTML in preview mode |
| CVE-2023-39959 | 3.5 LOW | Existence of calendars and address books can be checked by unauthenticated users |
| CVE-2023-39961 | 3.5 LOW | Text does not respect "Allow download" permissions |
| CVE-2023-39957 | Path traversal allows tricking the Talk Android app into writing files into it's root dire |
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V. Comments for CVE-2023-39963
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