CVE-2017-18776 Explained : Impact and Mitigation
Learn about CVE-2017-18776, an authentication bypass vulnerability impacting certain NETGEAR devices. Find out affected models and steps to mitigate this high-severity issue.
A vulnerability affecting certain NETGEAR devices allows for authentication bypass, impacting various models.
Understanding CVE-2017-18776
What is CVE-2017-18776?
CVE-2017-18776 is an authentication bypass vulnerability that affects specific NETGEAR devices, including models like D6100, D7000, D7800, and others.
The Impact of CVE-2017-18776
The vulnerability has a CVSS base score of 8.4, indicating a high severity level with significant impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2017-18776
Vulnerability Description
The vulnerability allows attackers to bypass authentication on affected NETGEAR devices, potentially leading to unauthorized access.
Affected Systems and Versions
- Models affected include D6100, D7000, D7800, JNR1010v2, JWNR2010v5, R6100, R6220, R7500, R7500v2, WNDR4300v1, WNDR4300v2, WNDR4500v3, WNR1000v4, WNR2000v5, WNR2020, and WNR2050.
Exploitation Mechanism
The vulnerability can be exploited locally with low attack complexity, requiring no privileges, and no user interaction.
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices to the specified versions to mitigate the vulnerability.
- Monitor vendor communications for patches and security advisories.
Long-Term Security Practices
- Regularly update firmware and software on networking devices.
- Implement strong, unique passwords and enable multi-factor authentication where possible.
- Conduct regular security assessments and penetration testing.
Patching and Updates
- Apply patches and firmware updates provided by NETGEAR to address the authentication bypass vulnerability.