CVE-2017-12305 : What You Need to Know

A vulnerability in the debug interface of Cisco IP Phone 8800 Series allows an authenticated local attacker to execute arbitrary commands, known as Debug Shell Command Injection. The flaw arises from insufficient input validation, enabling the attacker to provide additional command input to the affected parameter in the debug shell.

Understanding CVE-2017-12305

This CVE involves a security vulnerability in the debug interface of the Cisco IP Phone 8800 Series, potentially exploitable by authenticated local attackers.

What is CVE-2017-12305?

The flaw, termed Debug Shell Command Injection, permits attackers to run arbitrary commands by leveraging insufficient input validation in the debug interface. Authentication to the device is required for exploitation, followed by providing extra command input to the affected parameter.

The Impact of CVE-2017-12305

The vulnerability poses a significant risk as it allows attackers to execute unauthorized commands on the affected device, potentially leading to further compromise or unauthorized access.

Technical Details of CVE-2017-12305

This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The flaw in the debug interface of Cisco IP Phone 8800 Series enables authenticated local attackers to execute arbitrary commands due to inadequate input validation. It is identified by Cisco Bug IDs: CSCvf80034.

Affected Systems and Versions

Product: Cisco IP Phone 8800 Series
Version: Cisco IP Phone 8800 Series

Exploitation Mechanism

To exploit this vulnerability, the attacker must authenticate to the device and provide additional command input to the affected parameter in the debug shell.

Mitigation and Prevention

Protecting systems from CVE-2017-12305 involves immediate steps and long-term security practices.

Immediate Steps to Take

Apply patches and updates provided by Cisco promptly to address the vulnerability.
Monitor network traffic for any signs of unauthorized access or malicious activity.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access to devices.
Regularly conduct security assessments and audits to identify and mitigate potential vulnerabilities.

Patching and Updates

Regularly check for security advisories and updates from Cisco to ensure that systems are protected against known vulnerabilities.