CVE-2022-29323 : Security Advisory and Response

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow vulnerability via the MAC parameter in /goform/editassignment.

Understanding CVE-2022-29323

This CVE-2022-29323 affects D-Link DIR-816 A2_v1.10CNB04 with a critical stack overflow vulnerability that could be exploited by attackers.

What is CVE-2022-29323?

CVE-2022-29323 is a stack overflow vulnerability found in the MAC parameter of D-Link DIR-816 A2_v1.10CNB04's /goform/editassignment, allowing potential malicious actors to execute arbitrary code or crash the device.

The Impact of CVE-2022-29323

The exploitation of this vulnerability could lead to a denial-of-service (DoS) condition, unauthorized access, or complete compromise of the affected device, posing a significant risk to the security and integrity of the system.

Technical Details of CVE-2022-29323

This section provides in-depth technical details about the vulnerability.

Vulnerability Description

The vulnerability is due to insufficient input validation of the MAC parameter in the /goform/editassignment function of D-Link DIR-816 A2_v1.10CNB04, leading to a stack overflow condition.

Affected Systems and Versions

The affected product is D-Link DIR-816 A2_v1.10CNB04 in all versions.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specifically crafted MAC parameter values to the /goform/editassignment function, triggering a stack overflow and potentially gaining unauthorized control over the device.

Mitigation and Prevention

To prevent exploitation of CVE-2022-29323, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Disable remote access to the device if not required
Implement network segmentation to limit the attack surface
Monitor network traffic for any signs of exploitation

Long-Term Security Practices

Keep systems up to date with the latest security patches
Regularly review security advisories from the vendor
Conduct security audits and penetration testing to identify vulnerabilities

Patching and Updates

Vendor patches or firmware updates addressing the vulnerability should be promptly applied to mitigate the risk of exploitation and enhance the overall security posture of the affected device.