CVE-2024-0535: What You Need to Know

This CVE-2024-0535 vulnerability is a critical stack-based buffer overflow issue found in Tenda PA6 1.0.1.21, specifically affecting the function cgiPortMapAdd in the httpd component. This vulnerability allows remote attackers to execute attacks via manipulation of the argument groupName.

Understanding CVE-2024-0535

This section delves deeper into the details and impact of CVE-2024-0535.

What is CVE-2024-0535?

The vulnerability in Tenda PA6 1.0.1.21, related to the cgiPortMapAdd function in the httpd component, enables a stack-based buffer overflow through the manipulation of the argument groupName. It is rated as a high severity vulnerability with a base score of 8.8, making it critical.

The Impact of CVE-2024-0535

This critical vulnerability allows remote attackers to potentially exploit the stack-based buffer overflow, leading to unauthorized remote code execution and compromising the affected system's confidentiality, integrity, and availability.

Technical Details of CVE-2024-0535

To mitigate and prevent the exploitation of CVE-2024-0535, understanding the technical aspects is crucial.

Vulnerability Description

The vulnerability arises due to the improper handling of user-supplied data in the groupName argument, leading to a buffer overflow condition. Attackers can exploit this issue remotely, potentially causing system compromise.

Affected Systems and Versions

The vulnerability impacts Tenda PA6 version 1.0.1.21 with the httpd component. Systems utilizing this version are at risk of exploitation if not promptly secured.

Exploitation Mechanism

By manipulating the argument groupName with malicious data, threat actors can trigger a stack-based buffer overflow remotely, allowing them to execute arbitrary code on the target system.

Mitigation and Prevention

Addressing CVE-2024-0535 promptly is crucial to prevent any potential exploitation and security risks.

Immediate Steps to Take

Update Tenda PA6 to a patched version that addresses the stack-based buffer overflow vulnerability.
Implement firewall rules and network monitoring to detect and block any suspicious network traffic targeting the vulnerable component.

Long-Term Security Practices

Regularly monitor security mailing lists and vendor advisories for updates on vulnerabilities and patches.
Conduct periodic security assessments and audits to identify and address any security gaps in the network infrastructure.

Patching and Updates

Vendor patches and updates should be applied promptly to mitigate the risk posed by CVE-2024-0535. Regularly check for security updates and apply them to ensure the system's safety and integrity.