CVE-2019-19505 : What You Need to Know
Learn about CVE-2019-19505, a critical stack-based buffer overflow vulnerability in Tenda PA6 Wi-Fi Powerline extender version 1.0.1.21, allowing remote attackers to execute unauthorized code or crash the application.
Tenda PA6 Wi-Fi Powerline extender version 1.0.1.21 has a security vulnerability related to a stack-based buffer overflow in the "Wireless" section of the web-UI. This vulnerability allows remote attackers to execute unauthorized code or crash the application.
Understanding CVE-2019-19505
This CVE involves a critical security vulnerability in the Tenda PA6 Wi-Fi Powerline extender version 1.0.1.21.
What is CVE-2019-19505?
The CVE-2019-19505 vulnerability is a stack-based buffer overflow issue in the "Wireless" section of the web-UI of the Tenda PA6 Wi-Fi Powerline extender version 1.0.1.21.
The Impact of CVE-2019-19505
This vulnerability can be exploited by remote attackers to execute unauthorized code on the system or cause the application to crash, potentially leading to a compromise of the device's security.
Technical Details of CVE-2019-19505
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability is due to inadequate bounds checking in the "Wireless" section of the web-UI, allowing a remote attacker to trigger a stack-based buffer overflow by sending a specially crafted hostname.
Affected Systems and Versions
- Product: Tenda PA6 Wi-Fi Powerline extender
- Version: 1.0.1.21
Exploitation Mechanism
The vulnerability can be exploited remotely by sending a specifically crafted hostname to the affected device, triggering the buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2019-19505 requires immediate action and long-term security practices.
Immediate Steps to Take
- Disable remote access to the device if not required.
- Implement network segmentation to isolate vulnerable devices.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities.
- Conduct security assessments and penetration testing on IoT devices.
Patching and Updates
- Check for firmware updates from the vendor to address the CVE-2019-19505 vulnerability.