CVE-2019-19455 : What You Need to Know

Wowza Streaming Engine prior to version 4.8.5 had a security vulnerability related to insecure permissions that could allow a local attacker to escalate privileges in the Linux version of the server. The issue was resolved in version 4.8.5.

Understanding CVE-2019-19455

This CVE entry describes a security vulnerability in Wowza Streaming Engine that could lead to privilege escalation for a local attacker.

What is CVE-2019-19455?

Wowza Streaming Engine before version 4.8.5 had insecure permissions that could be exploited by a local attacker to gain higher privileges in the Linux server.

The Impact of CVE-2019-19455

The vulnerability could allow an attacker to insert arbitrary commands into files and execute them as root, potentially leading to unauthorized access and control of the system.

Technical Details of CVE-2019-19455

This section provides more technical insights into the vulnerability.

Vulnerability Description

The security flaw in Wowza Streaming Engine allowed local attackers to escalate privileges by manipulating files in the server's directory.

Affected Systems and Versions

Systems running Wowza Streaming Engine before version 4.8.5

Exploitation Mechanism

Attackers could insert arbitrary commands into files within the server's directory to execute them as root, gaining unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2019-19455 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Wowza Streaming Engine to version 4.8.5 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Implement the principle of least privilege to restrict access rights for users and processes.
Regularly audit and review file permissions to ensure they are set correctly.

Patching and Updates

Regularly apply security patches and updates provided by Wowza Streaming Engine to address known vulnerabilities.