CVE-2018-21226 Explained : Impact and Mitigation
Learn about CVE-2018-21226 affecting NETGEAR devices. Discover the impact, affected models, and mitigation steps to secure your devices against this authentication bypass vulnerability.
Several NETGEAR devices have a vulnerability that allows authentication bypass. This vulnerability impacts models JNR1010v2, JWNR2010v5, WNR1000v4, WNR2020, and WNR2050.
Understanding CVE-2018-21226
This CVE involves an authentication bypass vulnerability affecting specific NETGEAR router models.
What is CVE-2018-21226?
The vulnerability allows unauthorized users to bypass authentication on affected NETGEAR devices, potentially leading to unauthorized access.
The Impact of CVE-2018-21226
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Adjacent Network
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: None
- Scope: Unchanged
- This vulnerability poses a significant risk to the confidentiality, integrity, and availability of the affected devices.
Technical Details of CVE-2018-21226
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in NETGEAR devices allows attackers to bypass authentication mechanisms, potentially gaining unauthorized access to the devices.
Affected Systems and Versions
- JNR1010v2 (versions before 1.1.0.48)
- JWNR2010v5 (versions before 1.1.0.48)
- WNR1000v4 (versions before 1.1.0.48)
- WNR2020 (versions before 1.1.0.48)
- WNR2050 (versions before 1.1.0.48)
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to bypass authentication protocols and gain unauthorized access to the affected NETGEAR devices.
Mitigation and Prevention
Protecting against CVE-2018-21226 is crucial to ensure the security of NETGEAR devices.
Immediate Steps to Take
- Update affected devices to version 1.1.0.48 or later to patch the authentication bypass vulnerability.
- Monitor network traffic for any suspicious activity that may indicate unauthorized access.
Long-Term Security Practices
- Regularly update firmware and security patches on NETGEAR devices to mitigate potential vulnerabilities.
- Implement strong password policies and multi-factor authentication to enhance device security.
Patching and Updates
- Stay informed about security advisories from NETGEAR and promptly apply recommended patches to address known vulnerabilities.