Vulnerability Details : 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. 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.
Products affected by CVE-2020-11443
- cpe:2.3:a:zoom:it_installer:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-11443
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11443
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.5
|
HIGH | AV:N/AC:L/Au:S/C:N/I:C/A:C |
8.0
|
9.2
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2020-11443
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11443
-
https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443
Security: CVE-2020-11443 – Zoom Help CenterBroken Link;Vendor Advisory
-
https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-Windows
New updates for Windows – Zoom Help CenterBroken Link;Vendor Advisory
-
https://support.zoom.us/hc/en-us/articles/360043036451
Security: CVE-2020-11443 – Zoom Help CenterBroken Link;Vendor Advisory
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