CVE-2022-40869 : Exploit Details and Defense Strategies
Discover how CVE-2022-40869 affects Tenda AC15 and AC18 routers, the risks posed by stack overflow vulnerabilities, and mitigation steps to enhance network security.
This CVE-2022-40869 article provides detailed information about stack overflow vulnerabilities found in Tenda AC15 and AC18 routers V15.03.05.19 in the function fromDhcpListClient.
Understanding CVE-2022-40869
This section will cover what CVE-2022-40869 is and its impact.
What is CVE-2022-40869?
The CVE-2022-40869 vulnerability exists in Tenda AC15 and AC18 routers V15.03.05.19 due to stack overflow vulnerabilities in the fromDhcpListClient function.
The Impact of CVE-2022-40869
The vulnerability allows attackers to potentially execute arbitrary code or cause a denial of service by exploiting the function with a combined parameter "list*".
Technical Details of CVE-2022-40869
This section will delve into the vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability in Tenda AC15 and AC18 routers originates from stack overflow vulnerabilities in the fromDhcpListClient function.
Affected Systems and Versions
Tenda AC15 and AC18 routers running version V15.03.05.19 are affected by this stack overflow vulnerability.
Exploitation Mechanism
Attackers can exploit the CVE-2022-40869 vulnerability by manipulating the "list*" parameter within the fromDhcpListClient function.
Mitigation and Prevention
In this section, we will discuss immediate steps and long-term security practices to mitigate the CVE-2022-40869 vulnerability.
Immediate Steps to Take
Users are advised to update their Tenda AC15 and AC18 routers to the latest firmware version provided by the vendor. Additionally, configuring network security settings can help reduce the risk of exploitation.
Long-Term Security Practices
To enhance security posture, users should regularly update their router firmware, implement network segmentation, and follow best practices for network security.
Patching and Updates
Regularly check for firmware updates from Tenda for the AC15 and AC18 routers to patch the stack overflow vulnerabilities and ensure the security of the devices.