CVE-2018-21136 Explained : Impact and Mitigation
Learn about CVE-2018-21136, a vulnerability in certain NETGEAR devices exposing sensitive information. Find out the impact, affected systems, exploitation details, and mitigation steps.
A vulnerability in specific NETGEAR devices exposes sensitive information, affecting D3600 devices before version 1.0.0.76 and D6000 devices before version 1.0.0.76.
Understanding CVE-2018-21136
This CVE entry describes a security vulnerability in certain NETGEAR devices that could lead to the disclosure of sensitive information.
What is CVE-2018-21136?
The vulnerability in NETGEAR devices allows for the exposure of sensitive data, impacting specific models before a certain firmware version.
The Impact of CVE-2018-21136
- CVSS Base Score: 4.6 (Medium Severity)
- Confidentiality Impact: High
- Attack Complexity: Low
- Attack Vector: Physical
- The vulnerability does not require privileges or user interaction, affecting the confidentiality of the exposed information.
Technical Details of CVE-2018-21136
This section provides more technical insights into the CVE-2018-21136 vulnerability.
Vulnerability Description
The vulnerability exposes sensitive information on NETGEAR devices, specifically affecting D3600 and D6000 models before certain firmware versions.
Affected Systems and Versions
- Affected Systems: NETGEAR D3600, D6000
- Vulnerable Versions: Devices prior to version 1.0.0.76
Exploitation Mechanism
The vulnerability can be exploited physically without the need for complex attack methods, potentially leading to the disclosure of sensitive data.
Mitigation and Prevention
Protecting systems from CVE-2018-21136 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update affected NETGEAR devices to version 1.0.0.76 or later to mitigate the vulnerability.
- Monitor for any unauthorized access or data disclosure on the affected devices.
Long-Term Security Practices
- Regularly update firmware and security patches on all network devices.
- Implement network segmentation and access controls to limit exposure to sensitive information.
Patching and Updates
- NETGEAR has released firmware updates addressing the vulnerability. Ensure timely installation of these patches to secure the devices.