CVE-2023-27065 : What You Need to Know

This CVE-2023-27065 was published on March 13, 2023, by MITRE. It pertains to a buffer overflow vulnerability found in Tenda V15V1.0 V15.11.0.14(1521_3190_1058) through the picName parameter in the formDelWewifiPi function. This vulnerability can be exploited by attackers to trigger a Denial of Service (DoS) attack by sending a specially crafted request.

Understanding CVE-2023-27065

This section will delve into the details of CVE-2023-27065, including its impact and technical aspects.

What is CVE-2023-27065?

CVE-2023-27065 is a buffer overflow vulnerability discovered in the Tenda V15V1.0 V15.11.0.14(1521_3190_1058) software, specifically through the picName parameter in the formDelWewifiPi function. This flaw can be leveraged by malicious actors to launch a DoS attack on the affected system.

The Impact of CVE-2023-27065

The impact of CVE-2023-27065 is significant as it enables threat actors to disrupt the normal operation of the system by causing a Denial of Service (DoS) condition. This could lead to service unavailability and potential financial losses for organizations using the affected Tenda software.

Technical Details of CVE-2023-27065

In this section, we will explore the technical aspects of CVE-2023-27065, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Tenda V15V1.0 V15.11.0.14(1521_3190_1058) arises from a buffer overflow issue present in the picName parameter of the formDelWewifiPi function. This weakness can be abused by attackers to overflow the buffer, leading to a DoS condition.

Affected Systems and Versions

The buffer overflow vulnerability affects Tenda V15V1.0 V15.11.0.14(1521_3190_1058) and potentially other versions running the same software. Users of these systems are at risk of being targeted by malicious actors exploiting this flaw.

Exploitation Mechanism

Attackers can exploit CVE-2023-27065 by sending a meticulously crafted request containing malicious input to the picName parameter in the formDelWewifiPi function. This action triggers the buffer overflow vulnerability, ultimately resulting in a DoS attack.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-27065, it is crucial to take immediate steps, implement long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Organizations should restrict access to the vulnerable system and closely monitor network traffic for any suspicious activity.
Consider implementing network intrusion detection systems to detect and block potential attacks targeting this vulnerability.
Contact the software vendor for guidance on mitigating this vulnerability and follow their recommended best practices.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities and enhance overall system security.
Conduct routine security assessments and penetration testing to identify and remediate any weaknesses in the system.
Provide cybersecurity awareness training to employees to educate them on identifying and reporting potential security threats.

Patching and Updates

Users of Tenda V15V1.0 V15.11.0.14(1521_3190_1058) should apply security patches released by the vendor promptly to remediate the buffer overflow vulnerability.
Stay informed about security advisories and updates from Tenda to ensure the system is protected against known vulnerabilities.