CVE-2022-25548 : Security Advisory and Response

This article provides detailed information about CVE-2022-25548, a vulnerability found in Tenda AX1806 v1.0.0.1 that can lead to a Denial of Service (DoS) attack.

Understanding CVE-2022-25548

This CVE refers to a stack overflow vulnerability in the function fromSetSysTime of Tenda AX1806 v1.0.0.1, which can be exploited by attackers to trigger a DoS attack by manipulating the serverName parameter.

What is CVE-2022-25548?

The CVE-2022-25548 vulnerability exists in the Tenda AX1806 v1.0.0.1 router due to a stack overflow issue in the fromSetSysTime function. This flaw enables malicious actors to initiate a Denial of Service (DoS) attack through the serverName parameter.

The Impact of CVE-2022-25548

The impact of this vulnerability is significant as it allows threat actors to disrupt network services and potentially render the affected device or system inoperable, leading to service downtime and potential financial losses.

Technical Details of CVE-2022-25548

This section delves into the technical aspects of CVE-2022-25548, outlining the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Tenda AX1806 v1.0.0.1 is a stack overflow issue within the fromSetSysTime function, which can be abused to trigger a DoS attack via the serverName parameter.

Affected Systems and Versions

Tenda AX1806 v1.0.0.1 is confirmed to be affected by this vulnerability, highlighting the importance of prompt remediation actions to safeguard the system.

Exploitation Mechanism

Exploiting this vulnerability requires sending crafted requests containing specifically designed serverName parameters to trigger the stack overflow and disrupt the device’s normal operation.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-25548, organizations and users are advised to take immediate steps, implement long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Immediately disable remote access to the affected device and monitor network traffic for any suspicious activities that could indicate an ongoing attack.

Long-Term Security Practices

Establish a robust cybersecurity posture by regularly updating firmware, conducting security assessments, and implementing network segmentation to minimize the attack surface.

Patching and Updates

Ensure timely installation of security patches provided by the vendor to address the CVE-2022-25548 vulnerability and enhance the overall security posture of the affected systems.