CVE-2019-7632 : Vulnerability Insights and Analysis

LifeSize Team, Room, Passport, and Networker 220 devices are affected by an Authenticated Remote OS Command Injection vulnerability. The issue arises from the use of shell metacharacters in the mtu_size parameter of the support/mtusize.php file. In some instances, the default password for the cli account, 'lifesize,' can be exploited for authentication.

Understanding CVE-2019-7632

This CVE involves an Authenticated Remote OS Command Injection vulnerability affecting LifeSize devices.

What is CVE-2019-7632?

The vulnerability allows attackers to execute OS commands by manipulating the mtu_size parameter with shell metacharacters in a specific file.

The Impact of CVE-2019-7632

Attackers can gain unauthorized access to affected devices and execute arbitrary commands with the privileges of the compromised account.

Technical Details of CVE-2019-7632

LifeSize devices are susceptible to an Authenticated Remote OS Command Injection vulnerability.

Vulnerability Description

Attackers can exploit shell metacharacters in the mtu_size parameter of the support/mtusize.php file to execute unauthorized OS commands.

Affected Systems and Versions

LifeSize Team, Room, Passport, and Networker 220 devices are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability is demonstrated by the use of shell metacharacters in the mtu_size parameter, potentially leveraging the default 'lifesize' password for the cli account.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2019-7632.

Immediate Steps to Take

Change the default 'lifesize' password for the cli account to a strong, unique password.
Implement network segmentation to restrict access to vulnerable devices.
Regularly monitor device logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Keep devices up to date with the latest firmware and security patches.

Patching and Updates

Apply patches provided by LifeSize to address the Authenticated Remote OS Command Injection vulnerability.