CVE-2021-45598 : Security Advisory and Response
Learn about CVE-2021-45598 affecting NETGEAR devices, allowing authenticated users to execute commands with elevated privileges. Understand impacts, affected systems, and mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, and RBS850 before 3.2.17.12.
Understanding CVE-2021-45598
Certain NETGEAR devices are prone to command injection by authenticated users, potentially leading to significant impacts.
What is CVE-2021-45598?
CVE-2021-45598 involves a vulnerability on certain NETGEAR devices that allows an authenticated user to execute commands with elevated privileges, potentially compromising the system's confidentiality, integrity, and availability.
The Impact of CVE-2021-45598
- Base Score: 8.4 (High)
- Severity: High
- Attack Vector: Adjacent Network
- Attack Complexity: Low
- Privileges Required: High
- User Interaction: None
- Scope: Changed
- Confidentiality, Integrity, Availability Impact: High
Technical Details of CVE-2021-45598
NETGEAR devices are affected by a serious command injection vulnerability, as outlined below.
Vulnerability Description
The vulnerability allows authenticated users to inject malicious commands, potentially leading to unauthorized access and manipulation of the affected devices.
Affected Systems and Versions
- CBR40 before 2.5.0.24
- CBR750 before 4.6.3.6
- RBK852 before 3.2.17.12
- RBR850 before 3.2.17.12
- RBS850 before 3.2.17.12
Exploitation Mechanism
The vulnerability can be exploited by authenticated users to execute arbitrary commands, posing a significant risk to the confidentiality, integrity, and availability of the devices.
Mitigation and Prevention
Immediate action and long-term security practices are essential to mitigate the risks associated with CVE-2021-45598.
Immediate Steps to Take
- Disable remote management if not required
- Apply vendor-supplied patches promptly
- Monitor network traffic for signs of exploitation
Long-Term Security Practices
- Regularly update firmware to patch known vulnerabilities
- Implement strong authentication mechanisms
- Conduct regular security audits
Patching and Updates
- Keep devices up to date with the latest security patches
- Follow best practices for secure device configuration