CVE-2022-24885— Improper Authentication in Nextcloud Android Files
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 3.19.1之前版本存在授权问题漏洞，用户可以通过反复重新打开应用程序来利用该漏洞绕过Android 设备上 Nextcloud 应用程序的锁定。
Possible ATT&CK Techniques 1 AI
T1562.001
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I. Basic Information for CVE-2022-24885
Vulnerability Information
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Vulnerability Title
Improper Authentication in Nextcloud Android Files
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. Prior to version 3.19.1, users can bypass a lock on the Nextcloud app on an Android device by repeatedly reopening the app. Version 3.19.1 contains a fix for the problem. There are currently no known workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud Android app 授权问题漏洞
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 3.19.1之前版本存在授权问题漏洞，用户可以通过反复重新打开应用程序来利用该漏洞绕过Android 设备上 Nextcloud 应用程序的锁定。
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 | < 3.19.1 | - |
|
II. Public POCs for CVE-2022-24885
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-24885 (1)
-
https://github.com/nextcloud/android/pull/9816 x_refsource_MISC
Vendor Advisories for CVE-2022-24885 (1)
Other References for CVE-2022-24885 (1)
-
https://hackerone.com/reports/1450368 x_refsource_MISC
Same Patch Batch · nextcloud · 2022-04-27 · 5 CVEs total
| CVE-2022-24888 | 4.3 MEDIUM | Possible Injection in Nextcloud Server |
| CVE-2022-24887 | 4.3 MEDIUM | Open Redirect in Nextcloud Talk |
| CVE-2022-24889 | 2.4 LOW | Insufficient Verification of Data Authenticity in Nextcloud Server |
| CVE-2022-24886 | 2.2 LOW | Exposure of Sensitive Information to an Unauthorized Actor in com.nextcloud.client |
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V. Comments for CVE-2022-24885
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