Addressing CVE-2024-42984: Mitigating the Tenda FH1206 Stack Overflow Vulnerability

Published on: 08-16-2024 By Soc Team

Understanding CVE-2024-42984: Tenda FH1206 Stack Overflow Vulnerability

The Common Vulnerabilities and Exposures (CVE) identifier CVE-2024-42984 refers to a stack overflow vulnerability found in the Tenda FH1206 firmware version 02.03.01.35. This vulnerability was discovered on August 15, 2024, and it can allow an attacker to execute a Denial of Service (DoS) via a specially crafted POST request.

Technical Details

This vulnerability is present in the fromP2pListFilter function of the affected firmware. It is categorized under CWE-121: Stack-based Buffer Overflow. When a crafted POST request with a specific 'page' parameter is sent, it can trigger a buffer overflow, leading to a system crash and, consequently, a DoS condition.

The CVSS v3.1 base score for this vulnerability is 6.5, with the following vector string:

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

This vector indicates a medium severity with potential high impact on availability. The attack complexity is low, and no privileges are required.

Mitigation Strategies

To effectively mitigate CVE-2024-42984, administrators should consider the following steps:

  • Firmware Update: The primary recommendation is to check for any available firmware updates from Tenda for the FH1206 model. Applying patches from the vendor can close the vulnerability.
  • Network Segmentation: Limit access to the affected device to trusted networks only. This can be done by segregating network traffic to reduce the possibility of an external attack.
  • Firewall Rules: Implement strict firewall rules to control the traffic to and from the FH1206 device. Ensure that only necessary services are exposed.
  • Monitoring and Alerts: Implement network monitoring solutions to detect unusual activities or attempted exploits on the device. Set up alerts for any suspicious traffic patterns.
  • Access Control Lists (ACLs): Use ACLs to restrict access to the device, allowing only trusted IP addresses to interact with it.

References and Further Reading

For more technical details and proof of concept, you can refer to the original vulnerability report on GitHub.

It is crucial to stay informed about the latest vulnerabilities and practices to ensure the security of your network infrastructure. Regular updates and diligent monitoring can significantly reduce the risk posed by such vulnerabilities.