CVE-2020-28005 : What You Need to Know
Learn about CVE-2020-28005 affecting TP-Link TL-WPA4220 devices. Understand the buffer overflow vulnerability in httpd, its impact, affected systems, exploitation, and mitigation steps.
TP-Link TL-WPA4220 httpd Buffer Overflow Vulnerability
Understanding CVE-2020-28005
TP-Link TL-WPA4220 devices are susceptible to a buffer overflow via httpd, potentially leading to denial of service.
What is CVE-2020-28005?
The vulnerability in httpd on TP-Link TL-WPA4220 devices allows authenticated remote users to trigger a buffer overflow by sending a POST request to the /admin/syslog endpoint.
The Impact of CVE-2020-28005
This vulnerability can result in a denial of service (DoS) condition on affected devices, impacting their availability and functionality.
Technical Details of CVE-2020-28005
TP-Link TL-WPA4220 httpd Buffer Overflow
Vulnerability Description
- Vulnerability Type: Buffer Overflow
- Attack Vector: Remote
- Authentication: Required
- Fixed Version: TL-WPA4220(EU)_V4_201023
Affected Systems and Versions
- Affected Hardware Versions: 2 through 4
- Product: TP-Link TL-WPA4220
- Vendor: TP-Link
- Vulnerable Version: Not Applicable
Exploitation Mechanism
The vulnerability can be exploited by sending a crafted POST request to the /admin/syslog endpoint, causing a buffer overflow and potentially leading to a denial of service.
Mitigation and Prevention
Protecting Against CVE-2020-28005
Immediate Steps to Take
- Apply the provided patch TL-WPA4220(EU)_V4_201023 to mitigate the vulnerability.
- Monitor network traffic for any suspicious activity targeting the /admin/syslog endpoint.
Long-Term Security Practices
- Regularly update firmware and software to ensure the latest security patches are in place.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories from TP-Link and apply patches promptly to address known vulnerabilities.