CVE-2023-27062 : Vulnerability Insights and Analysis

This CVE record pertains to a vulnerability found in Tenda V15V1.0, which allows for a buffer overflow via the gotoUrl parameter in the formPortalAuth function. This vulnerability enables attackers to initiate a Denial of Service (DoS) attack by crafting a specific request.

Understanding CVE-2023-27062

This section will delve into the details of CVE-2023-27062, explaining the nature of the vulnerability and its potential impact.

What is CVE-2023-27062?

CVE-2023-27062 is a buffer overflow vulnerability discovered in Tenda V15V1.0, specifically within the gotoUrl parameter in the formPortalAuth function. This flaw can be exploited by malicious actors to trigger a DoS attack.

The Impact of CVE-2023-27062

The presence of CVE-2023-27062 in Tenda V15V1.0 poses a significant risk as it allows attackers to disrupt services by causing a DoS condition. This could lead to service unavailability and potential disruption of operations.

Technical Details of CVE-2023-27062

In this section, we will explore the technical aspects of CVE-2023-27062, including vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Tenda V15V1.0 arises from a buffer overflow in the gotoUrl parameter within the formPortalAuth function. This overflow can be exploited to execute arbitrary code or disrupt the normal operation of the device.

Affected Systems and Versions

At present, the buffer overflow vulnerability in Tenda V15V1.0 impacts all versions of the device. This leaves all systems running this particular version susceptible to exploitation.

Exploitation Mechanism

To exploit CVE-2023-27062, an attacker would craft a specific request targeting the gotoUrl parameter within the formPortalAuth function. By sending a malicious payload that triggers a buffer overflow, the attacker can disrupt the device's normal operation.

Mitigation and Prevention

This section focuses on the steps that can be taken to mitigate the risks posed by CVE-2023-27062 and prevent potential exploitation.

Immediate Steps to Take

To address CVE-2023-27062, users of Tenda V15V1.0 are advised to apply any available patches or updates provided by the vendor. Additionally, implementing network-level protections and access controls can help mitigate the risk of exploitation.

Long-Term Security Practices

In the long term, it is crucial for organizations to prioritize regular security assessments and audits to identify and address vulnerabilities promptly. Employing secure coding practices and conducting thorough security testing can also help prevent similar issues in the future.

Patching and Updates

Vendor-provided patches and updates should be applied as soon as they are released to remediate CVE-2023-27062. Keeping systems up to date with the latest security patches ensures that known vulnerabilities are addressed and mitigated effectively.