CVE-2018-19977 : Vulnerability Insights and Analysis
Learn about CVE-2018-19977, a command injection flaw in Auerswald COMfort 1200 IP phone, allowing remote attackers to execute unauthorized OS commands. Find mitigation steps and preventive measures here.
An authenticated remote attacker, who is a simple user within the same network as the Auerswald COMfort 1200 IP phone 3.4.4.1-10589, can exploit a vulnerability in the ftp upgrade configuration interface due to missing input validation and escaping. By sending a POST request to the web server, the attacker can execute operating system commands such as starting telnetd or opening a reverse shell.
Understanding CVE-2018-19977
This CVE involves a command injection vulnerability in the Auerswald COMfort 1200 IP phone, allowing an authenticated remote attacker to execute malicious commands.
What is CVE-2018-19977?
This CVE describes a security flaw in the ftp upgrade configuration interface of the Auerswald COMfort 1200 IP phone, enabling a remote attacker to run unauthorized commands through a POST request.
The Impact of CVE-2018-19977
The vulnerability allows a simple user within the same network as the device to execute arbitrary operating system commands, compromising the security and integrity of the system.
Technical Details of CVE-2018-19977
The technical aspects of this CVE are as follows:
Vulnerability Description
The vulnerability is a command injection issue resulting from missing input validation and escaping in the ftp upgrade configuration interface of the Auerswald COMfort 1200 IP phone.
Affected Systems and Versions
- Affected System: Auerswald COMfort 1200 IP phone
- Affected Version: 3.4.4.1-10589
Exploitation Mechanism
The attacker, being an authenticated remote user within the same network, can exploit the vulnerability by sending a crafted POST request to the web server, allowing the execution of unauthorized OS commands.
Mitigation and Prevention
To address CVE-2018-19977, consider the following mitigation strategies:
Immediate Steps to Take
- Implement network segmentation to restrict access to critical devices.
- Regularly monitor network traffic for suspicious activities.
- Apply the principle of least privilege to limit user permissions.
Long-Term Security Practices
- Conduct regular security training for users to raise awareness of social engineering attacks.
- Keep systems and software up to date with the latest security patches.
Patching and Updates
- Apply patches and updates provided by Auerswald to fix the vulnerability and enhance system security.