CVE-2018-21185 : What You Need to Know
Learn about CVE-2018-21185 affecting NETGEAR devices. Discover the impacted models and versions, the severity of the vulnerability, and mitigation steps to secure your systems.
NETGEAR devices are vulnerable to a stack-based buffer overflow, impacting various models such as D6100, D7800, R7500, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3, and WNR2000v5.
Understanding CVE-2018-21185
This CVE identifies a stack-based buffer overflow vulnerability in several NETGEAR devices.
What is CVE-2018-21185?
The vulnerability allows an authenticated user to trigger a stack-based buffer overflow on affected NETGEAR devices.
The Impact of CVE-2018-21185
- CVSS Base Score: 6.8 (Medium Severity)
- Attack Vector: Adjacent Network
- Attack Complexity: Low
- Privileges Required: High
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2018-21185
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability is a stack-based buffer overflow that can be exploited by an authenticated user on specific NETGEAR device models.
Affected Systems and Versions
The following NETGEAR models are affected:
- D6100 (version before 1.0.0.57)
- D7800 (version before 1.0.1.34)
- R7500 (version before 1.0.0.122)
- R7500v2 (version before 1.0.3.24)
- R7800 (version before 1.0.2.40)
- R9000 (version before 1.0.2.52)
- WNDR3700v4 (version before 1.0.2.92)
- WNDR4300 (version before 1.0.2.94)
- WNDR4300v2 (version before 1.0.0.50)
- WNDR4500v3 (version before 1.0.0.50)
- WNR2000v5 (version before 1.0.0.62)
Exploitation Mechanism
The vulnerability can be exploited by an authenticated user to execute a stack-based buffer overflow attack on the affected NETGEAR devices.
Mitigation and Prevention
Protect your systems from CVE-2018-21185 with the following steps:
Immediate Steps to Take
- Update affected devices to the latest firmware versions.
- Implement strong authentication mechanisms.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch all network devices.
- Conduct security assessments and penetration testing.
- Educate users on safe computing practices.
Patching and Updates
- NETGEAR has released patches for the affected devices. Ensure timely installation of these patches to mitigate the vulnerability.