Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2024-0298: Critical OS Command Injection Vulnerability in Totolink N200RE 9.3.5u.6139_B20201216

Views: 6

Overview

This report outlines a critical vulnerability in Totolink N200RE 9.3.5u.6139_B20201216. This vulnerability has been identified as CVE-2024-0298 and poses a significant risk due to its ability to facilitate OS command injection, potentially leading to system compromise or data leakage. Given the severity of this vulnerability, it is crucial for affected parties to understand and take steps to mitigate this risk.

Vulnerability Summary

CVE ID: CVE-2024-0298
Severity: Critical (CVSS: 7.3)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

Totolink N200RE | 9.3.5u.6139_B20201216

How the Exploit Works

The vulnerability exists within the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi. An attacker can manipulate the ‘ip’ argument to inject operating system commands. These commands are then executed by the system, granting the attacker the ability to compromise the system or potentially exfiltrate data.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This example shows an HTTP request where the ‘ip’ argument is manipulated to inject a malicious OS command:

POST /cgi-bin/cstecgi.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
function=setDiagnosisCfg&ip=127.0.0.1;%20malicious_os_command

This command would result in the system executing the ‘malicious_os_command’ after setting the diagnosis configuration.

Recommended Mitigation

It’s recommended that users apply the vendor’s patch once it becomes available. Until then, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation to block or detect attempts to exploit this vulnerability.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat