CVE-2017-18836 Explained : Impact and Mitigation
Learn about CVE-2017-18836 affecting various NETGEAR devices. Find out the impact, affected systems, exploitation mechanism, and mitigation steps to secure your network.
Various 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, are susceptible to a denial of service vulnerability in firmware versions prior to 12.0.2.15.
Understanding CVE-2017-18836
This CVE identifies a denial of service vulnerability affecting specific NETGEAR devices.
What is CVE-2017-18836?
CVE-2017-18836 is a vulnerability that allows attackers to disrupt the normal operation of various NETGEAR devices by exploiting a flaw in firmware versions before 12.0.2.15.
The Impact of CVE-2017-18836
The vulnerability has the following impact:
- Base Score: 6.2 (Medium)
- Attack Complexity: Low
- Attack Vector: Local
- Availability Impact: High
- Confidentiality Impact: None
- Integrity Impact: None
- Privileges Required: None
- Scope: Unchanged
- User Interaction: None
Technical Details of CVE-2017-18836
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows for a denial of service attack on the affected NETGEAR devices.
Affected Systems and Versions
The following NETGEAR devices are impacted:
- M4300-28G
- M4300-52G
- M4300-28G-POE+
- M4300-52G-POE+
- M4300-8X8F
- M4300-12X12F
- M4300-24X24F
- M4300-24X
- M4300-48X
- M4200
Firmware versions prior to 12.0.2.15 are vulnerable.
Exploitation Mechanism
The vulnerability can be exploited by attackers to trigger a denial of service condition on the affected devices.
Mitigation and Prevention
Protecting against CVE-2017-18836 requires specific actions to mitigate the risk.
Immediate Steps to Take
- Update the firmware of the affected NETGEAR devices to version 12.0.2.15 or later.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly monitor for firmware updates and security advisories from NETGEAR.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Apply patches and updates provided by NETGEAR promptly to address known vulnerabilities.