CVE-2022-41971— Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation
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I. Basic Information for CVE-2022-41971
Vulnerability Information
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Vulnerability Title
Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
侵犯隐私
Source: NVD (National Vulnerability Database)
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 |
|---|
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- https://hackerone.com/reports/1706248x_refsource_MISC
- https://github.com/nextcloud/spreed/pull/7974x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2022-41971
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 |
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V. Comments for CVE-2022-41971
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