Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2022-41971— Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation

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。 Nextcould Talk android 12.2.8之前版本、13.0.10之前版本、14.0.6之前版本、15.0.0之前版本存在安全漏洞，该漏洞源于客人可以在从通话中删除后继续接收来自通话的视频流。

CVSS 4.8 · Medium EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-41971

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcould Talk android is a video and audio conferencing app for Nextcloud. Prior to versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0, guests can continue to receive video streams from a call after being removed from a conversation. An attacker would be able to see videos on a call in a public conversation after being removed from that conversation, provided that they were removed while being in the call. Versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0 contain patches for the issue. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
侵犯隐私
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。 Nextcould Talk android 12.2.8之前版本、13.0.10之前版本、14.0.6之前版本、15.0.0之前版本存在安全漏洞，该漏洞源于客人可以在从通话中删除后继续接收来自通话的视频流。
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 < 12.2.8 -

II. Public POCs for CVE-2022-41971

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-41971

请登录查看更多情报信息。

Patches & Fixes for CVE-2022-41971 (1)

Vendor Advisories for CVE-2022-41971 (1)

Other References for CVE-2022-41971 (1)

Same Patch Batch · nextcloud · 2022-12-01 · 4 CVEs total

CVE-2022-41968 3.5 LOW Nextcloud Server's calendar name length not validated before writing to database
CVE-2022-41970 2.6 LOW Nextcloud Server's disabled download shares still allow download through preview images
CVE-2022-41969 2.4 LOW Nextcloud Server has no password length limit when creating a user as an administrator

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-359

V. Comments for CVE-2022-41971

No comments yet

Leave a comment