CVE-2019-18822 : Vulnerability Insights and Analysis

In ZOOM Call Recording version 6.3.1, a vulnerability exists that allows the user account to escalate privileges to root level by exploiting the callrec-rs@.service.

Understanding CVE-2019-18822

What is CVE-2019-18822?

This CVE identifies a privilege escalation flaw in ZOOM Call Recording 6.3.1, enabling the user account to elevate its privileges to root by manipulating a specific service.

The Impact of CVE-2019-18822

The vulnerability permits unauthorized users to gain root-level access, potentially leading to system compromise and unauthorized control.

Technical Details of CVE-2019-18822

Vulnerability Description

The flaw in ZOOM Call Recording version 6.3.1 allows the user account to exploit the callrec-rs@.service, executing a binary with root privileges, which can be replaced with a malicious program.

Affected Systems and Versions

Product: ZOOM Call Recording
Version: 6.3.1

Exploitation Mechanism

The callrec-rs@.service initiates the execution of the /opt/callrec/bin/rs binary with root privileges.

Mitigation and Prevention

Immediate Steps to Take

Disable unnecessary services and restrict access to critical system components.
Regularly monitor system activity for any unauthorized changes.

Long-Term Security Practices

Implement the principle of least privilege to limit user access rights.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates provided by the vendor to address the vulnerability.