CVE-2018-21202 : Vulnerability Insights and Analysis
Discover the critical CVE-2018-21202 vulnerability affecting NETGEAR devices. Learn about impacted models, exploitation risks, and mitigation steps to secure your network.
A stack-based buffer overflow vulnerability has been identified in certain models of NETGEAR devices, allowing exploitation by an unauthenticated attacker. The affected models include D7800, R6100, R7500, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, and WNDR4500v3.
Understanding CVE-2018-21202
This CVE involves a critical vulnerability in specific NETGEAR devices that could lead to unauthorized access.
What is CVE-2018-21202?
The CVE-2018-21202 vulnerability is a stack-based buffer overflow issue found in various NETGEAR router models, potentially exploited by attackers without authentication.
The Impact of CVE-2018-21202
The vulnerability has a high severity level, with significant impacts on confidentiality, integrity, and availability of the affected devices.
Technical Details of CVE-2018-21202
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability allows unauthenticated attackers to trigger a stack-based buffer overflow on the affected NETGEAR devices.
Affected Systems and Versions
- D7800 (before version 1.0.1.30)
- R6100 (before version 1.0.1.20)
- R7500 (before version 1.0.0.118)
- R7500v2 (before version 1.0.3.24)
- R7800 (before version 1.0.2.40)
- R9000 (before version 1.0.2.52)
- WNDR3700v4 (before version 1.0.2.96)
- WNDR4300 (before version 1.0.2.98)
- WNDR4300v2 (before version 1.0.0.54)
- WNDR4500v3 (before version 1.0.0.54)
Exploitation Mechanism
The vulnerability can be exploited by unauthenticated attackers through a stack-based buffer overflow, potentially leading to unauthorized access and control.
Mitigation and Prevention
Protecting against and addressing the CVE-2018-21202 vulnerability is crucial for maintaining network security.
Immediate Steps to Take
- Update affected devices to the latest firmware versions provided by NETGEAR.
- Implement strong network access controls to limit unauthorized access.
Long-Term Security Practices
- Regularly monitor for security advisories and updates from NETGEAR.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Apply patches and updates promptly to ensure the security of NETGEAR devices.