CVE-2021-28133

Zoom through 5.5.4 sometimes allows attackers to read private information on a participant's screen, even though the participant never attempted to share the private part of their screen. When a user shares a specific application window via the Share Screen functionality, other meeting participants can briefly see contents of other application windows that were explicitly not shared. The contents of these other windows can (for instance) be seen for a short period of time when they overlay the shared window and get into focus. (An attacker can, of course, use a separate screen-recorder application, unsupported by Zoom, to save all such contents for later replays and analysis.) Depending on the unintentionally shared data, this short exposure of screen contents may be a more or less severe security issue.
Configurations

Configuration 1 (hide)

cpe:2.3:a:zoom:zoom:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:59

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/161897/Zoom-5.4.3-54779.1115-5.5.4-13142.0301-Information-Disclosure.html - Third Party Advisory () http://packetstormsecurity.com/files/161897/Zoom-5.4.3-54779.1115-5.5.4-13142.0301-Information-Disclosure.html - Third Party Advisory
References () http://seclists.org/fulldisclosure/2021/Mar/48 - Third Party Advisory () http://seclists.org/fulldisclosure/2021/Mar/48 - Third Party Advisory
References () https://thehackernews.com/2021/03/new-zoom-screen-sharing-bug-lets-other.html - Third Party Advisory () https://thehackernews.com/2021/03/new-zoom-screen-sharing-bug-lets-other.html - Third Party Advisory
References () https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-044.txt - Third Party Advisory () https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-044.txt - Third Party Advisory
References () https://www.syss.de/pentest-blog/syss-2020-044-sicherheitsproblem-in-screen-sharing-funktionalitaet-von-zoom-cve-2021-28133 - Third Party Advisory () https://www.syss.de/pentest-blog/syss-2020-044-sicherheitsproblem-in-screen-sharing-funktionalitaet-von-zoom-cve-2021-28133 - Third Party Advisory
References () https://www.youtube.com/watch?v=SonmmgQlLzg - Third Party Advisory () https://www.youtube.com/watch?v=SonmmgQlLzg - Third Party Advisory
References () https://zoom.us/trust/security/security-bulletin - Vendor Advisory () https://zoom.us/trust/security/security-bulletin - Vendor Advisory

Information

Published : 2021-03-18 14:15

Updated : 2024-11-21 05:59


NVD link : CVE-2021-28133

Mitre link : CVE-2021-28133

CVE.ORG link : CVE-2021-28133


JSON object : View

Products Affected

zoom

  • zoom
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor