CVE-2018-19978 : Security Advisory and Response
Discover the buffer overflow vulnerability in Auerswald COMfort 1200 IP phone 3.4.4.1-10589 allowing remote code execution. Learn how to mitigate and prevent this security flaw.
The Auerswald COMfort 1200 IP phone 3.4.4.1-10589 has a security flaw in its DHCP and PPPOE configuration interface, allowing remote code execution.
Understanding CVE-2018-19978
This CVE identifies a buffer overflow vulnerability in the Auerswald COMfort 1200 IP phone, enabling remote attackers to execute arbitrary code on the device.
What is CVE-2018-19978?
The vulnerability in the DHCP and PPPOE configuration interface of the Auerswald COMfort 1200 IP phone allows a remote attacker, authenticated as a regular user on the same network, to trigger remote code execution through a POST request.
The Impact of CVE-2018-19978
- Attackers can exploit the ManufacturerName parameter in the request to execute code with root privileges on the device.
- The web server on the device operates with root privileges, escalating the severity of the vulnerability.
Technical Details of CVE-2018-19978
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The buffer overflow vulnerability in the DHCP and PPPOE configuration interface of the Auerswald COMfort 1200 IP phone allows remote code execution via a POST request.
Affected Systems and Versions
- Product: Auerswald COMfort 1200 IP phone
- Version: 3.4.4.1-10589
Exploitation Mechanism
- Remote attacker authenticated as a regular user on the same network
- Utilizes a POST request with the ManufacturerName parameter
- Code injection with root privileges on the device
Mitigation and Prevention
Protecting systems from CVE-2018-19978 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Restrict network access to the device to trusted users only.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all devices and software in the network.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
- Stay informed about security updates and advisories from the vendor.
- Regularly check for firmware updates and apply them as soon as they are available.