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CVE-2022-39210— Access to internal files of the Nextcloud Android app

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 Android app是德国Nextcloud公司的一款基于Android平台，用于访问Nextcloud服务器的移动应用程序。 Nextcloud Android app 3.21.0之前版本存在路径遍历漏洞，该漏洞源于应用程序文件的内部路径未得到适当保护，因此可以从应用程序中访问内部文件，在某些情况下，这可能会导致敏感信息泄露。

CVSS 3.2 · Low EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2022-39210

Vulnerability Information
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Vulnerability Title
Access to internal files of the Nextcloud Android app
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud android is the official Android client for the Nextcloud home server platform. Internal paths to the Nextcloud Android app files are not properly protected. As a result access to internal files of the from within the Nextcloud Android app is possible. This may lead to a leak of sensitive information in some cases. It is recommended that the Nextcloud Android app is upgraded to 3.21.0. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud Android app 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud Android app是德国Nextcloud公司的一款基于Android平台，用于访问Nextcloud服务器的移动应用程序。 Nextcloud Android app 3.21.0之前版本存在路径遍历漏洞，该漏洞源于应用程序文件的内部路径未得到适当保护，因此可以从应用程序中访问内部文件，在某些情况下，这可能会导致敏感信息泄露。
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 < 3.21.0 -

II. Public POCs for CVE-2022-39210

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III. Intelligence Information for CVE-2022-39210

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Patches & Fixes for CVE-2022-39210 (1)

Vendor Advisories for CVE-2022-39210 (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-2022-39211 3.0 LOW Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-22

V. Comments for CVE-2022-39210

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