CVE-2017-18840 : What You Need to Know
Learn about CVE-2017-18840, a denial of service vulnerability affecting NETGEAR devices including M4300-28G, M4300-52G, and more. Find out the impact, affected systems, and mitigation steps.
A denial of service vulnerability affecting various NETGEAR devices.
Understanding CVE-2017-18840
What is CVE-2017-18840?
The CVE-2017-18840 is a denial of service vulnerability that impacts several NETGEAR devices, including M4300-28G, M4300-52G, M4300-28G-POE+, M4300-52G-POE+, M4300-8X8F, M4300-12X12F, M4300-24X24F, M4300-24X, M4300-48X, and M4200.
The Impact of CVE-2017-18840
This vulnerability has a CVSS base score of 6.2, with a medium severity rating. It has a low attack complexity, local attack vector, and high availability impact.
Technical Details of CVE-2017-18840
Vulnerability Description
The vulnerability allows attackers to launch denial of service attacks on the affected NETGEAR devices.
Affected Systems and Versions
- M4300-28G (version prior to 12.0.2.15)
- M4300-52G (version prior to 12.0.2.15)
- M4300-28G-POE+ (version prior to 12.0.2.15)
- M4300-52G-POE+ (version prior to 12.0.2.15)
- M4300-8X8F (version prior to 12.0.2.15)
- M4300-12X12F (version prior to 12.0.2.15)
- M4300-24X24F (version prior to 12.0.2.15)
- M4300-24X (version prior to 12.0.2.15)
- M4300-48X (version prior to 12.0.2.15)
- M4200 (version prior to 12.0.2.15)
Exploitation Mechanism
The vulnerability can be exploited by attackers to disrupt the normal operation of the affected devices, leading to denial of service.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest firmware updates provided by NETGEAR to patch the vulnerability.
- Implement network segmentation to minimize the impact of potential attacks.
- Monitor network traffic for any suspicious activity that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update and patch all network devices to protect against known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses in the network infrastructure.
Patching and Updates
Ensure that all NETGEAR devices are running on firmware versions equal to or higher than 12.0.2.15 to mitigate the CVE-2017-18840 vulnerability.