CVE-2024-0533: Security Advisory and Response

This article provides detailed information about CVE-2024-0533, a vulnerability found in Tenda A15 Web-based Management Interface.

Understanding CVE-2024-0533

CVE-2024-0533 is a critical vulnerability identified in the Tenda A15 version 15.13.07.13. This vulnerability affects the Web-based Management Interface of the device and is classified as a stack-based buffer overflow issue.

What is CVE-2024-0533?

The vulnerability in Tenda A15 allows remote attackers to exploit a stack-based buffer overflow by manipulating the argument

devName

in the

/goform/SetOnlineDevName

file of the Web-based Management Interface component. This can lead to unauthorized access and potential system compromise.

The Impact of CVE-2024-0533

With a CVSSv2 base score of 8.3 and a CVSSv3 base score of 7.2 (High severity), this vulnerability poses a significant risk to affected systems. An attacker could potentially execute malicious code, compromise data integrity, and disrupt system availability.

Technical Details of CVE-2024-0533

The following technical details outline the vulnerability, affected systems, and exploitation mechanism:

Vulnerability Description

The vulnerability stems from inadequate input validation in the handling of the

devName

argument, leading to a stack-based buffer overflow. This flaw enables attackers to execute arbitrary code remotely.

Affected Systems and Versions

Vendor: Tenda
Product: A15
Affected Version: 15.13.07.13
Component: Web-based Management Interface

Exploitation Mechanism

Attackers can exploit this vulnerability remotely with knowledge of the specific file and argument manipulation. By sending crafted requests to the affected component, they can trigger the buffer overflow and potentially gain unauthorized access.

Mitigation and Prevention

To mitigate the risks associated with CVE-2024-0533, it is essential to take immediate steps, establish long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Disable remote access to the Web-based Management Interface if not required.
Monitor network traffic for any suspicious activity targeting the vulnerable component.
Implement firewall rules to restrict access to the affected systems.

Long-Term Security Practices

Regularly update and patch the firmware of Tenda A15 devices to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.
Educate users and IT personnel on secure coding practices and the risks associated with buffer overflows.

Patching and Updates

Consult the vendor's security advisories and official channels for the release of patches or firmware updates that address CVE-2024-0533. Apply relevant security patches promptly to secure the affected systems and prevent exploitation.