CVE-2025-33024: RUGGEDCOM ROX RCE Vulnerability

CVE-2025-33024 Overview

A critical command injection vulnerability has been identified in Siemens RUGGEDCOM ROX series industrial network devices. The vulnerability exists in the tcpdump tool within the web interface of affected devices, where missing server-side input sanitization allows an authenticated remote attacker to inject and execute arbitrary commands. Successful exploitation enables attackers to execute arbitrary code with root privileges, potentially leading to complete device compromise and network infrastructure takeover.

Critical Impact

Authenticated attackers can achieve root-level remote code execution on industrial network infrastructure devices through command injection in the tcpdump web interface, potentially compromising critical operational technology environments.

Affected Products

• RUGGEDCOM ROX MX5000 (All versions < V2.16.5)
• RUGGEDCOM ROX MX5000RE (All versions < V2.16.5)
• RUGGEDCOM ROX RX1400 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1500 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1501 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1510 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1511 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1512 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1524 (All versions < V2.16.5)
• RUGGEDCOM ROX RX1536 (All versions < V2.16.5)
• RUGGEDCOM ROX RX5000 (All versions < V2.16.5)

Discovery Timeline

• May 13, 2025 - CVE-2025-33024 published to NVD
• May 13, 2025 - Last updated in NVD database

Technical Details for CVE-2025-33024

Vulnerability Analysis

This vulnerability is classified under CWE-602 (Client-Side Enforcement of Server-Side Security), which indicates that security controls that should be enforced on the server are instead being relied upon client-side. The tcpdump diagnostic tool exposed through the web management interface fails to properly sanitize user-supplied input on the server side before passing it to system commands.

The RUGGEDCOM ROX series devices are industrial-grade network infrastructure equipment commonly deployed in critical infrastructure environments including utilities, transportation, and manufacturing. The web interface provides administrators with diagnostic capabilities including packet capture via tcpdump. However, the parameters passed to the tcpdump command are not adequately validated, allowing specially crafted input to break out of the intended command context and execute arbitrary system commands.

Since the web interface services run with elevated privileges to perform network diagnostics, successful command injection results in code execution as the root user, giving attackers complete control over the device.

Root Cause

The root cause is improper input validation and missing server-side sanitization of user-supplied parameters in the tcpdump functionality. The application relies on client-side controls rather than implementing proper server-side validation, allowing malicious input to be passed directly to the underlying operating system shell. Special characters and shell metacharacters are not filtered or escaped before being incorporated into system commands.

Attack Vector

The attack is network-based and requires authenticated access to the web management interface. An attacker with valid credentials (or who has compromised credentials through other means) can access the tcpdump diagnostic feature and inject malicious commands through parameter manipulation. The injected commands execute in the context of the web service process, which runs with root privileges on the underlying Linux-based operating system.

The vulnerability can be exploited by manipulating tcpdump parameters to include shell metacharacters such as semicolons, pipes, or backticks that terminate the legitimate command and append attacker-controlled commands. Once executed, the attacker gains full root access to the device, enabling persistent access, configuration changes, traffic interception, or use of the compromised device as a pivot point for further attacks on the OT/ICS network.

Detection Methods for CVE-2025-33024

Indicators of Compromise

• Unusual or unexpected process executions spawned from web server processes on RUGGEDCOM ROX devices
• Anomalous outbound network connections from the management interface
• Authentication logs showing access to tcpdump functionality followed by suspicious activity
• Unexpected files or modifications in system directories on the device
• Reverse shell connections or unexpected listening ports on the device

Detection Strategies

• Monitor web interface access logs for unusual tcpdump parameter values containing shell metacharacters (;, |, &&, backticks, $())
• Implement network monitoring to detect anomalous traffic patterns from RUGGEDCOM device management interfaces
• Deploy intrusion detection signatures to identify command injection attempts in HTTP requests to the web interface
• Review process execution logs on the device for unexpected commands or binaries

Monitoring Recommendations

• Enable comprehensive logging on RUGGEDCOM ROX devices and forward logs to a centralized SIEM solution
• Implement network segmentation monitoring to detect lateral movement attempts from compromised devices
• Monitor for unauthorized configuration changes on affected devices
• Set up alerts for authentication attempts and successful logins to the web management interface from unexpected sources

How to Mitigate CVE-2025-33024

Immediate Actions Required

• Upgrade all affected RUGGEDCOM ROX devices to firmware version V2.16.5 or later immediately
• Restrict network access to the web management interface to authorized management networks only
• Review and audit user accounts with access to the web interface, removing unnecessary accounts
• Implement multi-factor authentication where possible for management access
• Monitor affected devices for signs of compromise while awaiting patch deployment

Patch Information

Siemens has released firmware version V2.16.5 which addresses this command injection vulnerability. Organizations should download the updated firmware from Siemens support channels and apply it to all affected RUGGEDCOM ROX series devices. For detailed patch information and download links, refer to the Siemens Security Advisory SSA-301229.

Workarounds

• Restrict web interface access to trusted management networks using firewall rules or network segmentation
• Disable remote access to the web management interface and use only local console access where possible
• Implement additional network-level authentication such as VPN requirements before accessing the management interface
• Monitor and log all access to the tcpdump functionality until patches can be applied

# Example: Restrict management interface access via firewall
# Allow only trusted management subnet to access web interface
iptables -A INPUT -p tcp --dport 443 -s 10.10.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
# Note: Implement equivalent rules on network firewalls protecting RUGGEDCOM devices