CVE-2019-5036 Explained : Impact and Mitigation

The Nest Cam IQ Indoor, version 4620002, has a vulnerability in its error reporting feature called Weave, allowing for a denial-of-service attack.

Understanding CVE-2019-5036

This CVE involves a specific vulnerability in the Nest Cam IQ Indoor version 4620002 that can be exploited for a denial-of-service attack.

What is CVE-2019-5036?

The vulnerability in the error reporting feature Weave of Nest Cam IQ Indoor version 4620002 can be abused to execute a denial-of-service attack by sending crafted Weave packets.

The Impact of CVE-2019-5036

CVSS Base Score: 7.5 (High)
Attack Vector: Network
Availability Impact: High
This vulnerability can render the device unresponsive and unavailable when exploited by an attacker with the capability to send malicious packets.

Technical Details of CVE-2019-5036

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability lies in the Weave error reporting functionality of Nest Cam IQ Indoor version 4620002, allowing an attacker to force a Weave Exchange Session to terminate abruptly, leading to a denial-of-service condition.

Affected Systems and Versions

Product: Nest Labs
Affected Version: Nest Cam IQ Indoor version 4620002

Exploitation Mechanism

The attacker can exploit this vulnerability by sending carefully crafted Weave packets to trigger the abrupt termination of a Weave Exchange Session, causing the device to become unresponsive.

Mitigation and Prevention

Protecting systems from CVE-2019-5036 requires immediate actions and long-term security practices.

Immediate Steps to Take

Implement network-level protections to filter out malicious packets.
Regularly monitor network traffic for any unusual patterns.
Apply vendor-supplied patches or updates promptly.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users on safe network practices to prevent malicious attacks.

Patching and Updates

Stay informed about security advisories from Nest Labs.
Apply security patches and updates as soon as they are released.