CVE-2019-18396 Explained : Impact and Mitigation

A vulnerability has been found in specific third-party firmware used on Technicolor TD5130v2 devices, allowing remote attackers to execute arbitrary operating system commands.

Understanding CVE-2019-18396

This CVE identifies a Command Injection vulnerability in the Ping module of the Web Interface in OI_Fw_V20, affecting Technicolor TD5130v2 devices.

What is CVE-2019-18396?

The vulnerability enables remote attackers to run arbitrary operating system commands by manipulating the pingAddr parameter of the mnt_ping.cgi file.

The Impact of CVE-2019-18396

Exploiting this vulnerability could lead to unauthorized remote access and control of affected devices, posing a significant security risk.

Technical Details of CVE-2019-18396

The technical aspects of this CVE are as follows:

Vulnerability Description

An issue in certain Oi third-party firmware installed on Technicolor TD5130v2 devices allows Command Injection in the Ping module of the Web Interface in OI_Fw_V20.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: OI_Fw_V20

Exploitation Mechanism

Remote attackers can exploit this vulnerability by manipulating the pingAddr parameter of the mnt_ping.cgi file, executing arbitrary OS commands.

Mitigation and Prevention

Protecting systems from CVE-2019-18396 requires immediate action and long-term security practices.

Immediate Steps to Take

Disable remote access to affected devices if not required
Implement network segmentation to limit exposure
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities
Conduct security assessments and penetration testing to identify weaknesses
Educate users on safe browsing habits and security best practices

Patching and Updates

Apply patches and updates provided by the vendor to address the Command Injection vulnerability