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CVE-2023-32319— Basic auth header on WebDAV requests is not brute-force protected in Nextcloud

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 server 存在安全漏洞，该漏洞源于当提供的用户名不是电子邮件地址时，通过基本身份验证标头缺少对 WebDAV 端点的暴力破解保护允许暴力破解用户凭据。

CVSS 8.1 · High EPSS 0.70% · P51
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I. Basic Information for CVE-2023-32319

Vulnerability Information
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Vulnerability Title
Basic auth header on WebDAV requests is not brute-force protected in Nextcloud
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud server is an open source personal cloud implementation. Missing brute-force protection on the WebDAV endpoints via the basic auth header allowed to brute-force user credentials when the provided user name was not an email address. Users from version 24.0.0 onward are affected. This issue has been addressed in releases 24.0.11, 25.0.5 and 26.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
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 server 存在安全漏洞，该漏洞源于当提供的用户名不是电子邮件地址时，通过基本身份验证标头缺少对 WebDAV 端点的暴力破解保护允许暴力破解用户凭据。
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 >= 24.0.0, < 24.0.11 -

II. Public POCs for CVE-2023-32319

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III. Intelligence Information for CVE-2023-32319

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Patches & Fixes for CVE-2023-32319 (1)

Vendor Advisories for CVE-2023-32319 (1)

Same Patch Batch · nextcloud · 2023-05-26 · 3 CVEs total

CVE-2023-31128 8.1 HIGH NextCloud Cookbook's pull-checks.yml workflow is vulnerable to OS Command Injection
CVE-2023-32318 7.2 HIGH User session not correctly destroyed on logout

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-307

V. Comments for CVE-2023-32319

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