Zoom Security Flaws let Attackers Escalate Privileges

Zoom has released security patches for 6 high and 1 low severity vulnerabilities, allowing threat actors to escalate privileges and disclose sensitive information.

The CVSS Score of these vulnerabilities ranges between 3.3 (low) and 8.4 (High).

CVE(s):

Title	CVE ID	Severity
Improper Access Control	CVE-2023-36538	High
Improper Privilege Management	CVE-2023-36537	High
Untrusted Search Path	CVE-2023-36536	High
Insecure Temporary File	CVE-2023-34119	High
Improper Privilege Management	CVE-2023-34118	High
Relative Path Traversal	CVE-2023-34117	Low
Improper Input Validation	CVE-2023-34116	High

High Severity Vulnerabilities

CVE-2023-36538: Improper access control leads to privilege escalation in Zoom rooms

This vulnerability exists due to improper access control on Zoom rooms in Zoom versions lower than 5.15.0, allowing an authenticated user to escalate privileges via local access.

CVE-2023-36536: Untrusted search path leads to privilege escalation

This vulnerability exists due to an untrusted search path in the installer of Zoom rooms prior to version 5.15.0 which allows an authenticated user to escalate privileges via local access.

CVE-2023-34119: Insecure temporary file leads to privilege escalation

This vulnerability exists due to an insecure file on the installer of Zoom rooms versions prior to 5.15.0, allowing an authenticated user to escalate privileges via local access.

CVE-2023-34116: Improper input validation in Zoom leads to privilege escalation

This vulnerability exists due to improper input validation in Zoom Desktop for Windows versions prior to 5.15.0, allowing an authenticated user to escalate privileges via local access.

The vulnerabilities are discovered and reported to Zoom by sim0nsecurity.

The above-mentioned are four of the highest-severity vulnerabilities that have been fixed by Zoom and necessary patches have been released. 

For more information on the patches, Zoom has released a security advisory for these vulnerabilities. Users are recommended to upgrade their Zoom versions to fix these vulnerabilities.