CVE-2019-12328 : Security Advisory and Response

An issue involving command injection in the web interface of the Atcom A10W VoIP phone has been identified, allowing an authenticated remote attacker to execute arbitrary OS commands.

Understanding CVE-2019-12328

An issue involving command injection in the web interface of the Atcom A10W VoIP phone.

What is CVE-2019-12328?

A command injection vulnerability in the remote phonebook configuration URI of the Atcom A10W VoIP phone firmware version 2.6.1a2421.

The Impact of CVE-2019-12328

CVSS Base Score: 9 (Critical)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low
Scope: Changed

Technical Details of CVE-2019-12328

An overview of the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability allows an authenticated remote attacker to execute arbitrary OS commands using shell metacharacters in a POST request.

Affected Systems and Versions

Affected Product: Atcom A10W VoIP phone
Affected Firmware Version: 2.6.1a2421

Exploitation Mechanism

Exploiting this vulnerability requires an authenticated remote attacker within the same network to use shell metacharacters in a POST request.

Mitigation and Prevention

Measures to mitigate and prevent exploitation of CVE-2019-12328.

Immediate Steps to Take

Update the firmware to a patched version.
Restrict network access to the vulnerable device.
Monitor network traffic for suspicious activities.

Long-Term Security Practices

Implement input validation mechanisms in web interfaces.
Conduct regular security assessments and audits.
Educate users on safe browsing practices.

Patching and Updates

Apply security patches provided by the vendor.
Stay informed about security advisories related to the Atcom A10W VoIP phone.