CVE-2023-24096 Explained : Impact and Mitigation

A stack overflow vulnerability has been identified in the TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R firmware, specifically in version 1.01.B01. This vulnerability, triggered by the newpass parameter at /formPasswordSetup, can potentially enable attackers to execute arbitrary code by exploiting a crafted payload. It is important to note that this vulnerability impacts only products that are no longer supported by the maintainer.

Understanding CVE-2023-24096

This section provides an insight into the nature and impact of CVE-2023-24096.

What is CVE-2023-24096?

CVE-2023-24096 is a stack overflow vulnerability found in the TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R firmware version 1.01.B01. Attackers can leverage this flaw to execute unauthorized code by manipulating the newpass parameter at /formPasswordSetup.

The Impact of CVE-2023-24096

The vulnerability poses a significant risk as it allows threat actors to potentially run malicious code on affected devices. This could lead to unauthorized access, data breaches, and other security compromises.

Technical Details of CVE-2023-24096

Delving deeper into the technical aspects of CVE-2023-24096.

Vulnerability Description

The stack overflow vulnerability in the TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R firmware version 1.01.B01 arises from insufficient input validation of the newpass parameter at /formPasswordSetup. This oversight enables attackers to craft payloads that trigger the overflow and execute arbitrary code.

Affected Systems and Versions

The impacted system in this case is the TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R with firmware version 1.01.B01. Products that fall under these specifications are susceptible to exploitation.

Exploitation Mechanism

By sending a specially crafted payload via the newpass parameter at /formPasswordSetup, threat actors can exploit the stack overflow vulnerability to execute arbitrary code on vulnerable systems.

Mitigation and Prevention

Understanding how to mitigate the risks associated with CVE-2023-24096 is crucial for safeguarding systems and data.

Immediate Steps to Take

Organizations using the affected TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R devices should isolate them from the network immediately.
Consider implementing network segmentation to limit the potential impact of an exploitation attempt.
Monitor network traffic for any suspicious activity that might indicate an ongoing attack.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities and enhance system security.
Conduct security audits and penetration testing to identify and address potential weaknesses in the network infrastructure.
Educate employees on best practices for cybersecurity to reduce the likelihood of successful attacks.

Patching and Updates

As a proactive measure, users should check with the manufacturer or maintainer for any available patches or updates to address the stack overflow vulnerability in the TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R firmware version 1.01.B01. Implementing these updates promptly can help mitigate the risk of exploitation.