CVE-2022-38570 : What You Need to Know

Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow in the function formDelPushedAd, leading to a Denial of Service (DoS) vulnerability via the adPushUID parameter.

Understanding CVE-2022-38570

This CVE identifies a specific vulnerability in Tenda M3 V1.0.0.12(4856) that could be exploited by attackers to trigger a DoS condition.

What is CVE-2022-38570?

CVE-2022-38570 points to a stack overflow issue in Tenda M3 routers, allowing threat actors to disrupt services by manipulating the adPushUID parameter.

The Impact of CVE-2022-38570

The vulnerability poses a serious threat as it enables malicious parties to launch DoS attacks, affecting the availability of network services and causing potential downtime.

Technical Details of CVE-2022-38570

Below are the specifics of this security flaw:

Vulnerability Description

The flaw arises from a stack overflow in the formDelPushedAd function in Tenda M3 V1.0.0.12(4856), exploited through the adPushUID parameter.

Affected Systems and Versions

Tenda M3 routers running version 1.0.0.12(4856) are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this flaw by sending crafted requests containing malicious data to the adPushUID parameter, triggering the stack overflow and resulting in a Denial of Service condition.

Mitigation and Prevention

To safeguard your systems against CVE-2022-38570, consider the following measures:

Immediate Steps to Take

Monitor network traffic for any suspicious activity targeting the adPushUID parameter.
Restrict access to vulnerable Tenda M3 routers.

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities.
Implement network segmentation to contain potential attacks.

Patching and Updates

Stay informed about security advisories from Tenda and apply patches promptly to eliminate the risk posed by CVE-2022-38570.