CVE-2021-45553 : Security Advisory and Response
Learn about CVE-2021-45553, a high-severity command injection vulnerability affecting certain NETGEAR devices. Find out the impacted versions and necessary mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7000 before 1.0.11.126, R6900P before 1.3.2.126, and R7000P before 1.3.2.126.
Understanding CVE-2021-45553
This CVE pertains to command injection vulnerability in certain NETGEAR devices, potentially leading to unauthorized manipulation of commands by authenticated users.
What is CVE-2021-45553?
- Command injection by an authenticated user on affected NETGEAR devices
- Specific affected versions: R7000 before 1.0.11.126, R6900P before 1.3.2.126, and R7000P before 1.3.2.126
The Impact of CVE-2021-45553
- Base Score: 8.7 (High Severity)
- Attack Complexity: Low
- Attack Vector: Local
- Scope: Changed
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: Low
- No user interaction required
Technical Details of CVE-2021-45553
This section provides a closer look at the technical aspects of the vulnerability.
Vulnerability Description
- Command injection vulnerability on certain NETGEAR devices
Affected Systems and Versions
- R7000 before 1.0.11.126
- R6900P before 1.3.2.126
- R7000P before 1.3.2.126
Exploitation Mechanism
- Authenticated user can execute unauthorized commands through the vulnerability
Mitigation and Prevention
Protective measures to address and prevent exploitation of CVE-2021-45553.
Immediate Steps to Take
- Update devices to the patched versions
- Implement strong, unique passwords
- Apply security best practices
Long-Term Security Practices
- Regularly monitor for security advisories
- Conduct security audits and assessments
Patching and Updates
- Refer to vendor security advisories for patch information