CVE-2019-20764 : Exploit Details and Defense Strategies
Learn about CVE-2019-20764 affecting NETGEAR R7800 devices. Discover the impact, technical details, and mitigation steps for this stack-based buffer overflow vulnerability.
Devices running NETGEAR R7800 firmware versions earlier than 1.0.2.52 are susceptible to a stack-based buffer overflow, allowing exploitation by an authenticated user.
Understanding CVE-2019-20764
NETGEAR R7800 devices are affected by a stack-based buffer overflow vulnerability that can be exploited by authenticated users.
What is CVE-2019-20764?
The CVE-2019-20764 vulnerability affects devices running NETGEAR R7800 firmware versions prior to 1.0.2.52, enabling a stack-based buffer overflow.
The Impact of CVE-2019-20764
- CVSS Base Score: 6.8 (Medium Severity)
- Attack Vector: Adjacent Network
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: High
- This vulnerability poses a significant risk to the confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2019-20764
NETGEAR R7800 devices are vulnerable to a stack-based buffer overflow, potentially leading to unauthorized access and system compromise.
Vulnerability Description
The vulnerability allows an authenticated user to trigger a stack-based buffer overflow on devices running NETGEAR R7800 firmware versions earlier than 1.0.2.52.
Affected Systems and Versions
- Affected Systems: NETGEAR R7800 devices
- Vulnerable Versions: Firmware versions prior to 1.0.2.52
Exploitation Mechanism
An attacker with authenticated access to the device can exploit the vulnerability, potentially leading to unauthorized actions and system compromise.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-20764.
Immediate Steps to Take
- Update NETGEAR R7800 firmware to version 1.0.2.52 or later.
- Monitor network traffic for any suspicious activity.
- Restrict access to vulnerable devices.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Implement strong authentication mechanisms.
- Conduct security audits and assessments periodically.
Patching and Updates
- Apply patches and updates provided by NETGEAR to address the CVE-2019-20764 vulnerability.