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CVE-2021-34823

CRITICAL

9.1

Description

The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessible to the logged-on macOS user. When a remote user sends a crafted HTTP request to the server, it triggers a code path that will download a configuration file from a specified remote machine over HTTP. There is an XXE flaw in processing of this configuration file that allows reading local (to macOS) files and uploading them to remote machines.

Details CVE

Score CVSS v3.19.1

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie8/13/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

on24:screenshare

Faiblesses (CWE)

CWE-611

References

https://www.trustwave.com/en-us/resources/security-resources/security-advisories/(cve@mitre.org)

https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105(cve@mitre.org)

https://www.trustwave.com/en-us/resources/security-resources/security-advisories/(af854a3a-2127-422b-91ae-364da2661108)

https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29105(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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