CVE-2018-21108 : Security Advisory and Response
Learn about CVE-2018-21108 affecting NETGEAR R7800 devices. Find out the impact, affected versions, and mitigation steps for this command injection vulnerability.
Devices prior to version 1.0.2.60 of NETGEAR R7800 are susceptible to command injection when utilized by a user who has been authenticated.
Understanding CVE-2018-21108
NETGEAR R7800 devices before version 1.0.2.60 are affected by a command injection vulnerability when used by an authenticated user.
What is CVE-2018-21108?
CVE-2018-21108 is a vulnerability in NETGEAR R7800 devices that allows an authenticated user to execute commands due to improper input validation.
The Impact of CVE-2018-21108
- CVSS Base Score: 6.8 (Medium Severity)
- Attack Vector: Adjacent Network
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: High
- Scope: Unchanged
- Users with authenticated access can exploit this vulnerability to execute arbitrary commands.
Technical Details of CVE-2018-21108
NETGEAR R7800 devices are affected by a command injection vulnerability that can be exploited by authenticated users.
Vulnerability Description
The vulnerability allows authenticated users to inject and execute arbitrary commands on affected devices.
Affected Systems and Versions
- Affected Systems: NETGEAR R7800 devices
- Affected Versions: Devices before version 1.0.2.60
Exploitation Mechanism
- An authenticated user can exploit the vulnerability by injecting malicious commands into the system, leading to unauthorized command execution.
Mitigation and Prevention
Steps to address and prevent exploitation of CVE-2018-21108.
Immediate Steps to Take
- Update affected devices to version 1.0.2.60 or later to mitigate the vulnerability.
- Monitor network traffic for any suspicious activity that may indicate exploitation.
Long-Term Security Practices
- Regularly update firmware and security patches to protect against known vulnerabilities.
- Implement strong authentication mechanisms to limit access to sensitive functionalities.
Patching and Updates
- Apply security patches and updates provided by NETGEAR to address the command injection vulnerability in affected devices.