CVE-2019-20700 : What You Need to Know
Learn about CVE-2019-20700, a vulnerability in NETGEAR devices allowing unauthenticated attackers to trigger a stack-based buffer overflow. Find out the impacted systems and mitigation steps.
An unauthenticated attacker can exploit a stack-based buffer overflow vulnerability in several models of NETGEAR devices.
Understanding CVE-2019-20700
What is CVE-2019-20700?
CVE-2019-20700 is a vulnerability that allows an unauthenticated attacker to trigger a stack-based buffer overflow in various NETGEAR device models.
The Impact of CVE-2019-20700
The vulnerability has a CVSS base score of 5.6, with a medium severity rating. It can lead to high confidentiality impact and requires high privileges for exploitation.
Technical Details of CVE-2019-20700
Vulnerability Description
The vulnerability involves a stack-based buffer overflow in multiple NETGEAR device models, enabling unauthenticated attackers to exploit it.
Affected Systems and Versions
- D6220 (prior to version 1.0.0.44)
- D6400 (prior to version 1.0.0.78)
- D7000v2 (prior to version 1.0.0.51)
- D8500 (prior to version 1.0.3.42)
- And more (refer to the provided list for full details)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: High
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by NETGEAR for the affected device 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 to the latest versions.
- Conduct security assessments and penetration testing on network devices.
Patching and Updates
Ensure that all NETGEAR devices are updated with the latest firmware versions to mitigate the CVE-2019-20700 vulnerability.