CVE-2022-43628 : Security Advisory and Response
Discover the details of CVE-2022-43628, a vulnerability allowing network-adjacent attackers to execute code on D-Link DIR-1935 1.03 routers. Learn about impact, affected systems, and mitigation steps.
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Learn about the impact, technical details, and mitigation steps for CVE-2022-43628.
Understanding CVE-2022-43628
This section will provide insights into the nature of the vulnerability and its implications.
What is CVE-2022-43628?
CVE-2022-43628 permits attackers located nearby the network to run unauthorized code on impacted D-Link DIR-1935 1.03 routers. Authentication is required but can be circumvented, posing a serious risk.
The Impact of CVE-2022-43628
The vulnerability arises from insufficient validation of user inputs, allowing threat actors to exploit the flaw to execute malicious code with elevated privileges.
Technical Details of CVE-2022-43628
Delve into the specifics of the vulnerability, including affected systems, exploitation method, and its implications.
Vulnerability Description
The flaw stems from improper handling of SetIPv6FirewallSettings requests in the web management portal, leading to the execution of system calls using unvalidated user data.
Affected Systems and Versions
D-Link DIR-1935 version 1.03 routers are impacted by this vulnerability, where attackers can execute code as root, compromising system integrity.
Exploitation Mechanism
By manipulating subelements within the IPv6FirewallRule element, attackers can inject arbitrary code, exploiting the flaw to achieve unauthorized access.
Mitigation and Prevention
Explore the immediate and long-term measures to mitigate the risks posed by CVE-2022-43628.
Immediate Steps to Take
Users are advised to update their firmware to patch the vulnerability, enhance authentication mechanisms, and monitor network activity for signs of exploitation.
Long-Term Security Practices
Implement strict firewall rules, conduct regular security audits, and educate users on safe online practices to prevent similar exploits in the future.
Patching and Updates
Stay informed about security updates from D-Link, install patches promptly, and follow best practices to secure router configurations effectively.