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CVE-2022-39211— Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server

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和Nextcloud Enterprise Server存在代码问题漏洞，该漏洞源于本地运行的web服务可以被发现并被错误地请求。以下产品和版本受到影响：Nextcloud Server 23.0.8之前版本和24.0.4之前版本，extcloud Enterprise Server 22.2.10.4之前版本、23.0.8之前版本和24.0.4之前版本。

CVSS 3.0 · Low EPSS 0.79% · P54

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2022-39211

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud server is an open source personal cloud platform. In affected versions it was found that locally running webservices can be found and requested erroneously. It is recommended that the Nextcloud Server is upgraded to 23.0.8 or 24.0.4. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.10.4, 23.0.8 or 24.0.4. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 代码问题漏洞
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和Nextcloud Enterprise Server存在代码问题漏洞，该漏洞源于本地运行的web服务可以被发现并被错误地请求。以下产品和版本受到影响：Nextcloud Server 23.0.8之前版本和24.0.4之前版本，extcloud Enterprise Server 22.2.10.4之前版本、23.0.8之前版本和24.0.4之前版本。
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 < 23.0.8 -

II. Public POCs for CVE-2022-39211

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III. Intelligence Information for CVE-2022-39211

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Patches & Fixes for CVE-2022-39211 (2)

Vendor Advisories for CVE-2022-39211 (1)

Same Patch Batch · nextcloud · 2022-09-16 · 3 CVEs total

CVE-2022-39212 4.3 MEDIUM Last video frame is still sent after video is disabled in a call in Nextcloud Talk
CVE-2022-39210 3.2 LOW Access to internal files of the Nextcloud Android app

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-918

V. Comments for CVE-2022-39211

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