CVE-2022-27290 : What You Need to Know
Learn about CVE-2022-27290 affecting D-Link DIR-619 Ax v1.00 routers. Discover the impact, technical details, and mitigation steps for this stack overflow vulnerability.
D-Link DIR-619 Ax v1.00 was discovered to contain a stack overflow vulnerability in the function formSetWanDhcpplus, allowing attackers to perform a Denial of Service (DoS) attack by exploiting the curTime parameter.
Understanding CVE-2022-27290
This vulnerability affects D-Link DIR-619 Ax v1.00 routers and can be exploited by malicious actors to disrupt services by triggering a stack overflow.
What is CVE-2022-27290?
The CVE-2022-27290 vulnerability is a stack overflow issue in the specific function of D-Link DIR-619 Ax v1.00, enabling attackers to carry out a DoS attack using the curTime parameter.
The Impact of CVE-2022-27290
The impact of this vulnerability is the potential for attackers to interrupt network services and render the affected router inaccessible, leading to a denial of service situation.
Technical Details of CVE-2022-27290
Vulnerability Description
The vulnerability arises due to inadequate input validation in the formSetWanDhcpplus function, allowing an attacker to overwhelm the stack memory with a large amount of data.
Affected Systems and Versions
D-Link DIR-619 Ax v1.00 routers are affected by this vulnerability specifically, and systems with this particular version may be at risk.
Exploitation Mechanism
By sending a specially crafted request containing a malicious curTime parameter, threat actors can trigger the stack overflow, resulting in a DoS condition.
Mitigation and Prevention
Immediate Steps to Take
To mitigate the risk associated with CVE-2022-27290, users are advised to apply security patches provided by D-Link promptly. It is crucial to keep the router's firmware up to date to prevent exploitation.
Long-Term Security Practices
Apart from patching, implementing network segmentation, access controls, and regular security audits can enhance the overall security posture and resilience against such vulnerabilities.
Patching and Updates
Regularly check for firmware updates and security advisories from D-Link to ensure that the router remains protected against known vulnerabilities.