CVE-2020-11443
The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client. Standard users are able to write to this directory, and can write links to other directories on the machine. As the installer runs with SYSTEM privileges and follows these links, a user can cause the installer to delete files that otherwise cannot be deleted by the user.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 1.54% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59, CWE-732
- Affected
- zoom/it installer
- Source
- cve@mitre.org
References
- https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsBroken Link, Vendor Advisory
- https://support.zoom.us/hc/en-us/articles/360043036451Broken Link, Vendor Advisory
- https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443Broken Link, Vendor Advisory
- https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-WindowsBroken Link, Vendor Advisory
- https://support.zoom.us/hc/en-us/articles/360043036451Broken Link, Vendor Advisory
- https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443Broken Link, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.