POJIA破甲
地图 / Last video frame is still sent after video is disabled in a call

Last video frame is still sent after video is disabled in a call

信息泄露 / 隐私侵犯 / #1641088

厂商
Nextcloud
严重程度
低危 · CVSS 4.2
赏金
—
弱点
隐私侵犯
研究员
@daniel_calvino_sanchez
披露日期
2022-09-16
资产
nextcloud/spreed
CVE
CVE-2022-39212

该报告还没有中文解读。

原文摘录

摘自原文(1528 字符中的一小部分)
Summary: When a participant is in a call and that participant disables the video rather than a black frame the last frame of the video will be sent. Similarly, if the video is disabled before joining the call the last frame of the video before joining the call will be sent.
原文中的代码
videoElement = document.createElement('video')
document.body.appendChild(videoElement)
videoElement.srcObject = new MediaStream()
videoElement.srcObject.addTrack(OCA.Talk.SimpleWebRTC.webrtc.peers[0].pc.getReceivers()[1].track)
videoElement.style.zIndex = 10000000
videoElement.style.position = …

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 Nextcloud 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @daniel_calvino_sanchez · 版权归作者与 Nextcloud 所有

同类报告

Physical Laptop TakeoverEd · 2018-08-12Connection informaton is sent to a third-party serviceNord Security · —Blocked user can see live videoTikTok · 2021-05-28 · $418Twitter ID exposure via error-based side-channel attackX / xAI · 2019-05-16 · $1,470Intent Leads To Unauthorised Video Call Initiation Leaking Surrounding Informations Of VictimSnapchat · 2024-04-05Changing email address on Twitter for Android unsets "Protect your Tweets"X / xAI · 2019-01-18 · $2,940