Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2024-0297: Critical OS Command Injection Vulnerability in Totolink N200RE

Views: 14

Overview

A critical vulnerability, identified as CVE-2024-0297, has been discovered in Totolink N200RE 9.3.5u.6139_B20201216 firmware. This vulnerability, which lies in the UploadFirmwareFile function of /cgi-bin/cstecgi.cgi, can lead to Operating System (OS) command injection. It poses a significant risk to any system running the affected software, as it can potentially lead to system compromise or data leakage if exploited.

Vulnerability Summary

CVE ID: CVE-2024-0297
Severity: Critical (7.3 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: 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 due to insufficient sanitization of the FileName argument in the UploadFirmwareFile function. This lack of sanitization allows for the injection of malicious OS commands. An attacker can manipulate this argument remotely, resulting in execution of arbitrary commands on the system with the privileges of the web server.

Conceptual Example Code

An example of how the vulnerability might be exploited could be a malicious HTTP POST request to the vulnerable endpoint. The FileName argument can be manipulated to include OS commands which get executed on the server. It might look something like this:

POST /cgi-bin/cstecgi.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
UploadFirmwareFile=;+rm+-rf+/+&FileName=malicious_firmware.bin

In this example, the command `rm -rf /` will be executed on the server, deleting all files on the system. This is purely a conceptual example and does not represent a real-world scenario.

Recommendations

Users of the affected software are advised to apply the vendor patch as soon as possible. If the vendor patch is not available, temporary mitigation can be achieved by using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block 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