CVE-2021-46442 : Vulnerability Insights and Analysis
Learn about CVE-2021-46442, a critical vulnerability in the 'webupg' binary of D-Link DIR-825 G1 that allows unauthorized functions. Understand the impact, affected systems, and mitigation steps.
A vulnerability in the 'webupg' binary of D-Link DIR-825 G1 allows attackers to bypass authentication and execute unauthorized functions.
Understanding CVE-2021-46442
What is CVE-2021-46442?
Attackers can exploit this vulnerability to perform actions like downloading configuration files and updating firmware without proper authorization on D-Link DIR-825 G1.
The Impact of CVE-2021-46442
This security flaw enables attackers to bypass authentication and execute unauthorized actions on the affected device, potentially compromising its security.
Technical Details of CVE-2021-46442
Vulnerability Description
The vulnerability in the 'webupg' binary allows unauthorized actions like downloading configurations and updating firmware.
Affected Systems and Versions
- Product: D-Link DIR-825 G1
- Version: Not Available
Exploitation Mechanism
Attackers can exploit the 'webupg' binary of the affected device through the 'autoupgrade.asp' parameters, bypassing authentication.
Mitigation and Prevention
Immediate Steps to Take
- Disable remote access to the router if not required
- Regularly monitor for unauthorized configuration changes
Long-Term Security Practices
- Implement strong password policies
- Keep firmware updated to the latest version
Patching and Updates
Apply firmware updates from the vendor to fix the vulnerability.