CVE-2017-6334 : Exploit Details and Defense Strategies
Learn about CVE-2017-6334, a vulnerability in NETGEAR DGN2200 devices allowing remote authenticated users to execute arbitrary OS commands. Find mitigation steps and prevention measures here.
A vulnerability known as dnslookup.cgi has been discovered on NETGEAR DGN2200 devices with firmware versions up to and including 10.0.0.50. This vulnerability enables remote authenticated users to execute arbitrary OS commands by utilizing shell metacharacters in the host_name field of an HTTP POST request. It is important to note that this vulnerability is distinct from CVE-2017-6077.
Understanding CVE-2017-6334
This CVE entry describes a specific vulnerability affecting NETGEAR DGN2200 devices.
What is CVE-2017-6334?
The CVE-2017-6334 vulnerability, also known as dnslookup.cgi, allows remote authenticated users to run arbitrary OS commands on affected devices.
The Impact of CVE-2017-6334
The vulnerability poses a significant risk as it enables attackers to execute unauthorized commands on the device, potentially leading to further compromise of the system.
Technical Details of CVE-2017-6334
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in dnslookup.cgi on NETGEAR DGN2200 devices with firmware up to 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request.
Affected Systems and Versions
- Affected Device: NETGEAR DGN2200
- Firmware Versions: Up to and including 10.0.0.50
Exploitation Mechanism
The vulnerability is exploited by inserting shell metacharacters in the host_name field of an HTTP POST request, granting remote authenticated users the ability to execute unauthorized OS commands.
Mitigation and Prevention
Protecting systems from CVE-2017-6334 requires immediate action and long-term security measures.
Immediate Steps to Take
- Update the firmware of NETGEAR DGN2200 devices to a version that addresses the vulnerability.
- Monitor network traffic for any suspicious activity that may indicate exploitation of the vulnerability.
Long-Term Security Practices
- Implement strong authentication mechanisms to prevent unauthorized access to devices.
- Regularly audit and review device configurations to identify and mitigate potential security risks.
Patching and Updates
- Regularly check for firmware updates and security patches released by NETGEAR to address known vulnerabilities like CVE-2017-6334.