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CVE-2023-28834— Full path of data directory exposed to Nextcloud server users

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存在信息泄露漏洞，该漏洞源于用户能够从 API 端点获取 Nextcloud服务器的完整数据目录路径。

CVSS 3.5 · Low EPSS 0.81% · P54
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I. Basic Information for CVE-2023-28834

Vulnerability Information
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Vulnerability Title
Full path of data directory exposed to Nextcloud server users
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud Server is an open source personal cloud server. Nextcloud Server 24.0.0 until 24.0.6 and 25.0.0 until 25.0.4, as well as Nextcloud Enterprise Server 23.0.0 until 23.0.11, 24.0.0 until 24.0.6, and 25.0.0 until 25.0.4, have an information disclosure vulnerability. A user was able to get the full data directory path of the Nextcloud server from an API endpoint. By itself this information is not problematic as it can also be guessed for most common setups, but it could speed up other unknown attacks in the future if the information is known. Nextcloud Server 24.0.6 and 25.0.4 and Nextcloud Enterprise Server 23.0.11, 24.0.6, and 25.0.4 contain patches for this issue. There are no known workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的不恰当跨边界移除
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 信息泄露漏洞
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存在信息泄露漏洞，该漏洞源于用户能够从 API 端点获取 Nextcloud服务器的完整数据目录路径。
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 >= 23.0.0, < 23.0.14 -

II. Public POCs for CVE-2023-28834

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III. Intelligence Information for CVE-2023-28834

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Patches & Fixes for CVE-2023-28834 (1)

Vendor Advisories for CVE-2023-28834 (1)

Other References for CVE-2023-28834 (2)

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-212

V. Comments for CVE-2023-28834

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