CVE-2021-45636 Explained : Impact and Mitigation

NETGEAR D7000 devices before 1.0.1.82 are affected by a stack-based buffer overflow by an unauthenticated attacker.

Understanding CVE-2021-45636

NETGEAR D7000 devices are vulnerable to a stack-based buffer overflow that can be exploited by an unauthenticated attacker.

What is CVE-2021-45636?

The vulnerability in NETGEAR D7000 devices allows unauthenticated attackers to trigger a stack-based buffer overflow.

The Impact of CVE-2021-45636

The impact of this vulnerability is rated as MEDIUM with a base score of 5.4. It can lead to a compromise of system integrity.

Technical Details of CVE-2021-45636

NETGEAR D7000 devices are susceptible to a stack-based buffer overflow attack.

Vulnerability Description

The vulnerability arises before version 1.0.1.82, enabling a stack-based buffer overflow that allows attackers to execute malicious code.

Affected Systems and Versions

Product: NETGEAR D7000
Versions affected: Before 1.0.1.82

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None

Mitigation and Prevention

To mitigate the CVE-2021-45636 vulnerability:

Immediate Steps to Take

Update NETGEAR D7000 devices to version 1.0.1.82 or above promptly.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Implement network segmentation to limit the attack surface.
Regularly conduct security assessments and penetration testing.
Stay informed about security updates and patches.
Enforce strong access controls and authentication mechanisms.

Patching and Updates

Refer to vendor patches and security advisories for the latest updates and patches.