CVE-2018-21208 : Security Advisory and Response
Learn about CVE-2018-21208, a high-severity vulnerability in NETGEAR devices allowing unauthenticated attackers to execute commands. Find mitigation steps and patching details here.
Unauthenticated attackers can exploit command injection vulnerabilities in specific NETGEAR devices. This vulnerability affects D6100 devices before version 1.0.0.57, R6100 devices before version 1.0.1.20, R7500v2 devices before version 1.0.3.24, WNDR4300v2 devices before version 1.0.0.50, and WNDR4500v3 devices before version 1.0.0.50.
Understanding CVE-2018-21208
Certain NETGEAR devices are susceptible to command injection by unauthenticated attackers.
What is CVE-2018-21208?
CVE-2018-21208 is a vulnerability that allows unauthenticated attackers to exploit command injection flaws in specific NETGEAR devices.
The Impact of CVE-2018-21208
- CVSS Base Score: 8.8 (High)
- Attack Vector: Adjacent Network
- Attack Complexity: Low
- Privileges Required: None
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2018-21208
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows unauthenticated attackers to perform command injections on affected NETGEAR devices.
Affected Systems and Versions
The following devices are impacted:
- D6100 devices before version 1.0.0.57
- R6100 devices before version 1.0.1.20
- R7500v2 devices before version 1.0.3.24
- WNDR4300v2 devices before version 1.0.0.50
- WNDR4500v3 devices before version 1.0.0.50
Exploitation Mechanism
Attackers can exploit this vulnerability by sending crafted requests to the affected devices, leading to command injections.
Mitigation and Prevention
Protecting systems from CVE-2018-21208 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update affected devices to the latest firmware versions that address the vulnerability.
- Implement network segmentation to limit exposure to potential attacks.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch all network devices to prevent known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses.
- Educate users and administrators about safe browsing habits and security best practices.
Patching and Updates
- NETGEAR has released patches for the affected devices. Ensure timely installation of these patches to mitigate the vulnerability.