CVE-2022-25215 : What You Need to Know

This article provides detailed information about CVE-2022-25215, a vulnerability related to improper access control on Phicomm Routers that could lead to denial of service.

Understanding CVE-2022-25215

This section delves into the description, impact, technical details, and mitigation strategies related to CVE-2022-25215.

What is CVE-2022-25215?

The vulnerability involves improper access control on the LocalMACConfig.asp interface of Phicomm Routers, enabling unauthenticated remote attackers to manipulate a list of banned client MAC addresses. Subsequently, these MAC addresses are restricted from accessing the WAN or the router.

The Impact of CVE-2022-25215

CVE-2022-25215 can result in a denial of service scenario where unauthorized individuals can influence the MAC address list, impeding access to critical network components.

Technical Details of CVE-2022-25215

This section provides insights into the vulnerability description, affected systems, and the exploitation mechanism associated with CVE-2022-25215.

Vulnerability Description

The vulnerability arises due to improper access controls on the LocalMACConfig.asp interface, allowing unauthenticated attackers to modify the list of banned MAC addresses.

Affected Systems and Versions

Phicomm Routers, specifically K2G A1 versions equal to or higher than 22.6.3.20, K2 A7 versions equal to or higher than 22.6.506.28, and K2G A1 versions equal to or higher than 22.6.3.20 are impacted by CVE-2022-25215.

Exploitation Mechanism

By leveraging the vulnerability in the LocalMACConfig.asp interface, threat actors can add or remove MAC addresses from the banned list, obstructing network access for affected clients.

Mitigation and Prevention

This section outlines immediate steps and long-term security practices to mitigate the risks associated with CVE-2022-25215.

Immediate Steps to Take

Network administrators should restrict access to the LocalMACConfig.asp interface, ensuring that only authorized users can modify MAC address configurations.

Long-Term Security Practices

Implementing network segmentation, regular security assessments, and monitoring can bolster the overall security posture, reducing the likelihood of unauthorized access.

Patching and Updates

Stay informed about security advisories from Phicomm and apply patches promptly to address known vulnerabilities and enhance network security.