CVE-2022-43643 : Security Advisory and Response
Learn about CVE-2022-43643 affecting D-Link DIR-825 1.0.9/EE routers, allowing network-adjacent attackers to execute arbitrary code. Find mitigation steps and ensure network security.
This vulnerability affects D-Link DIR-825 1.0.9/EE routers, allowing network-adjacent attackers to execute arbitrary code without authentication. By exploiting a flaw in the Generic plugin for the xupnpd service, attackers can run code within the admin user's context.
Understanding CVE-2022-43643
This section provides insights into the nature and impact of the CVE-2022-43643 vulnerability.
What is CVE-2022-43643?
The vulnerability in the Generic plugin for the xupnpd service allows attackers to execute arbitrary code on affected D-Link routers without requiring authentication.
The Impact of CVE-2022-43643
The lack of proper validation of user-supplied input in executing system calls exposes affected installations to high-risk code execution by malicious actors.
Technical Details of CVE-2022-43643
Delve deeper into the technical aspects of CVE-2022-43643 to understand the vulnerability's specifics.
Vulnerability Description
The flaw arises from the absence of adequate validation of user input before using it in system call execution, providing attackers the opportunity to run code within the admin user's context.
Affected Systems and Versions
D-Link DIR-825 1.0.9/EE routers are impacted by this vulnerability, with version 1.0.9 confirmed as affected.
Exploitation Mechanism
Attackers can exploit this vulnerability via the xupnpd service's Generic plugin, listening on TCP port 4044, to execute arbitrary code adjacent to the network.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks posed by CVE-2022-43643 and prevent exploitation.
Immediate Steps to Take
Immediately update the affected D-Link DIR-825 routers to a secure version to protect against unauthorized code execution.
Long-Term Security Practices
Ensure regular security updates and patches for all network devices to address vulnerabilities proactively and enhance the overall security posture.
Patching and Updates
Stay informed about security advisories and patches released by D-Link to promptly address known vulnerabilities and strengthen network resilience.