CVE-2021-45623 : Security Advisory and Response
Discover the CVE-2021-45623 affecting NETGEAR devices with command injection risks. Learn about the impact, technical details, and mitigation steps for this critical vulnerability.
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This impacts R7800 before 1.0.2.74, R9000 before 1.0.5.2, and XR500 before 2.3.2.66.
Understanding CVE-2021-45623
NETGEAR devices suffer from command injection vulnerabilities allowing unauthorized attackers to execute arbitrary commands.
What is CVE-2021-45623?
The CVE-2021-45623 vulnerability involves unauthenticated command injection on specific NETGEAR models, potentially leading to severe consequences.
The Impact of CVE-2021-45623
The vulnerability has a CVSS base score of 8.3, indicating a high severity level with significant confidentiality and integrity impacts, requiring no privileges for exploitation.
Technical Details of CVE-2021-45623
The vulnerability specifics and affected systems are crucial to understand the risks involved.
Vulnerability Description
- CVE ID: CVE-2021-45623
- CVSS Score: 8.3 (High)
- Attack Vector: ADJACENT_NETWORK
- Attack Complexity: LOW
- Availability Impact: LOW
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Privileges Required: NONE
- User Interaction: NONE
Affected Systems and Versions
- R7800 before 1.0.2.74
- R9000 before 1.0.5.2
- XR500 before 2.3.2.66
Exploitation Mechanism
The vulnerability allows unauthenticated attackers to execute arbitrary commands on affected NETGEAR devices, compromising confidentiality and integrity.
Mitigation and Prevention
Taking immediate actions and implementing long-term security practices are crucial in mitigating the risks.
Immediate Steps to Take
- Update affected devices to the latest firmware versions.
- Implement network segmentation to reduce exposure.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all network devices.
- Conduct security audits to identify vulnerabilities proactively.
- Educate users on safe internet practices to prevent future attacks.
Patching and Updates
Ensure timely patching of firmware and security updates to fix the CVE-2021-45623 vulnerability.