CVE-2021-45603 : Security Advisory and Response
Learn about CVE-2021-45603, a disclosure vulnerability impacting certain NETGEAR devices. Find out the impacts, affected systems, exploitation details, and mitigation steps.
Certain NETGEAR devices are affected by a vulnerability that exposes sensitive information, potentially leading to unauthorized access.
Understanding CVE-2021-45603
What is CVE-2021-45603?
CVE-2021-45603 refers to a disclosure vulnerability in certain NETGEAR devices, where a UPnP request can expose a device's serial number, enabling malicious actors to perform a password reset.
The Impact of CVE-2021-45603
The vulnerability has the following impacts:
- CVSS Base Score: 6.1 (Medium)
- Confidentiality Impact: High
- Availability Impact: Low
Technical Details of CVE-2021-45603
Vulnerability Description
The vulnerability allows disclosure of a device's serial number, facilitating unauthorized password resets.
Affected Systems and Versions
The issue affects various NETGEAR devices, including D7800, EX2700, WN3000RPv2, WN3000RPv3, RAX series, XR series, and more, before specific firmware versions.
Exploitation Mechanism
By sending a crafted UPnP request, attackers can retrieve a device's serial number and use it for unauthorized access.
Mitigation and Prevention
Immediate Steps to Take
- Disable UPnP on affected devices.
- Update devices to the latest firmware releases.
Long-Term Security Practices
- Regularly monitor for security advisories and updates from NETGEAR.
- Implement strong, unique passwords for device access.
- Consider segmenting networks to limit the impact of potential breaches.
Patching and Updates
Ensure that all affected NETGEAR devices are patched with the latest firmware versions to mitigate the vulnerability.