CVE-2025-4009: Evertz SDVN 3080ipx-10G RCE Vulnerability

CVE-2025-4009 Overview

CVE-2025-4009 is a critical command injection vulnerability affecting the Evertz SDVN 3080ipx-10G, a High Bandwidth Ethernet Switching Fabric designed for video applications. The device exposes a web management interface on port 80 that allows administrators to control product features, configure network switching, and register licenses. The application is developed in PHP using the webEASY SDK (also known as 'ewb' by Evertz).

The vulnerability specifically exists in the feature-transfer-import.php endpoint, which is susceptible to arbitrary command injection. This flaw allows remote unauthenticated attackers to execute arbitrary commands with root privileges on affected devices.

Critical Impact

Remote unauthenticated attackers can achieve arbitrary command execution with root privileges, potentially leading to interruption of media streaming, modification of streamed media content, and alteration of closed captions being generated.

Affected Products

• Evertz SDVN 3080ipx-10G High Bandwidth Ethernet Switching Fabric
• Devices running the webEASY SDK (ewb) web management interface

Discovery Timeline

• 2025-05-28 - CVE-2025-4009 published to NVD
• 2025-09-12 - Last updated in NVD database

Technical Details for CVE-2025-4009

Vulnerability Analysis

This vulnerability is classified as CWE-77 (Improper Neutralization of Special Elements used in a Command - Command Injection). The web management interface fails to properly sanitize user-supplied input before passing it to system shell commands, allowing attackers to inject and execute arbitrary operating system commands.

The attack can be executed remotely over the network without any authentication requirements. Given that the vulnerable process runs with root privileges, successful exploitation grants attackers complete control over the affected device. This is particularly concerning in broadcast and media streaming environments where these devices are deployed.

The vulnerability exists alongside related issues including CVE-2025-10364 (command injection in feature-transfer-export.php) and CVE-2025-10365 (authentication bypass), which together create a severe attack surface for unauthenticated remote attackers.

Root Cause

The root cause of this vulnerability lies in improper input validation within the feature-transfer-import.php script. User-controlled input is passed directly to shell commands without adequate sanitization or escaping, enabling command injection attacks. The webEASY SDK framework appears to lack sufficient security controls to prevent this class of vulnerability.

Attack Vector

The attack vector is network-based, targeting the web management interface exposed on port 80. An attacker can craft malicious HTTP requests to the feature-transfer-import.php endpoint, embedding shell metacharacters or command sequences within parameters. These injected commands are then executed by the underlying system with elevated privileges.

The exploitation path involves:

1. Identifying a vulnerable Evertz SDVN 3080ipx-10G device with an exposed web interface
2. Sending a crafted HTTP request to the feature-transfer-import.php endpoint
3. Including malicious command sequences in vulnerable parameters
4. Achieving arbitrary command execution as root

For technical details regarding the exploitation mechanism, refer to the OneKey Security Advisory.

Detection Methods for CVE-2025-4009

Indicators of Compromise

• Unexpected HTTP requests to feature-transfer-import.php containing shell metacharacters such as ;, |, &, $(), or backticks
• Anomalous process spawning from the web server process (e.g., PHP spawning shells or system utilities)
• Unauthorized outbound network connections originating from the device
• Unexpected modifications to system files or configurations on the device

Detection Strategies

• Monitor web server access logs for requests to feature-transfer-import.php and feature-transfer-export.php endpoints with suspicious parameter values
• Implement network intrusion detection rules to identify command injection patterns in HTTP traffic destined for port 80 on these devices
• Deploy endpoint detection and response (EDR) solutions to monitor for anomalous process execution chains on network devices where applicable
• Review authentication logs for bypass attempts targeting the web management interface

Monitoring Recommendations

• Establish baseline traffic patterns for the web management interface and alert on deviations
• Configure SIEM rules to correlate web server logs with process execution events on the device
• Implement network segmentation monitoring to detect lateral movement attempts from compromised broadcast equipment
• Set up alerts for any root-level command execution initiated from the web application context

How to Mitigate CVE-2025-4009

Immediate Actions Required

• Restrict network access to the web management interface (port 80) using firewall rules, limiting access to trusted administrative networks only
• Place affected devices behind a VPN or jump host to prevent direct internet exposure
• Disable the web management interface entirely if not required for operations
• Monitor affected devices for signs of compromise and conduct forensic analysis if exploitation is suspected

Patch Information

Organizations should contact Evertz directly to inquire about security patches or firmware updates addressing CVE-2025-4009. Review the OneKey Security Advisory for the latest information on available remediation options.

Workarounds

• Implement network-level access controls to restrict access to the web management interface to trusted IP addresses only
• Deploy a web application firewall (WAF) in front of the device to filter malicious requests containing command injection patterns
• Use network segmentation to isolate broadcast equipment from general network traffic
• Consider temporarily disabling the web management interface and using alternative management methods if available

# Example firewall rule to restrict management interface access
# Allow only trusted management subnet
iptables -A INPUT -p tcp --dport 80 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP