CVE-2019-20753 : Security Advisory and Response
Learn about CVE-2019-20753, a stack-based buffer overflow vulnerability in certain NETGEAR devices. Find out the impacted models, exploitation risks, and mitigation steps.
An unauthorized attacker can exploit a stack-based buffer overflow vulnerability in certain models of NETGEAR devices.
Understanding CVE-2019-20753
What is CVE-2019-20753?
CVE-2019-20753 is a stack-based buffer overflow vulnerability found in specific NETGEAR device models.
The Impact of CVE-2019-20753
This vulnerability allows an unauthorized attacker to execute arbitrary code on affected devices, potentially leading to a complete compromise of the device.
Technical Details of CVE-2019-20753
Vulnerability Description
The vulnerability arises due to a stack-based buffer overflow in certain NETGEAR devices.
Affected Systems and Versions
The following NETGEAR models and versions are impacted:
- DGN2200v1 (before 1.0.0.58)
- D8500 (before 1.0.3.42)
- D7000v2 (before 1.0.0.51)
- D6400 (before 1.0.0.78)
- and more (refer to the provided list).
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Adjacent Network
- Privileges Required: None
- User Interaction: None
- Impact: High on Availability, Confidentiality, and Integrity
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by NETGEAR for the affected models.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and software on all network devices.
- Conduct security assessments and penetration testing to identify vulnerabilities.
Patching and Updates
Ensure that all NETGEAR devices are running the latest firmware versions to mitigate the CVE-2019-20753 vulnerability.