CVE-2026-1414: Sangfor Security Management System RCE Flaw

CVE-2026-1414 Overview

A command injection vulnerability has been identified in Sangfor Operation and Maintenance Security Management System up to version 3.0.12. This vulnerability impacts the getInformation function within the /equipment/get_Information endpoint of the HTTP POST Request Handler component. An attacker can exploit this flaw by manipulating the fortEquipmentIp argument to inject arbitrary system commands, enabling remote code execution on the affected system.

Critical Impact

Remote attackers with low-level privileges can inject and execute arbitrary system commands through the vulnerable HTTP POST endpoint, potentially leading to full system compromise.

Affected Products

• Sangfor Operation and Maintenance Security Management System up to 3.0.12
• Systems exposing the /equipment/get_Information endpoint

Discovery Timeline

• January 26, 2026 - CVE-2026-1414 published to NVD
• January 26, 2026 - Last updated in NVD database

Technical Details for CVE-2026-1414

Vulnerability Analysis

This command injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) occurs due to insufficient input validation in the getInformation function. When processing HTTP POST requests to the /equipment/get_Information endpoint, the application fails to properly sanitize the fortEquipmentIp parameter before passing it to system command execution routines. This allows attackers to append malicious commands that are executed with the privileges of the web application process.

The vulnerability is remotely exploitable over the network and requires only low-level authentication. The exploit has been publicly disclosed, increasing the risk of active exploitation in the wild.

Root Cause

The root cause stems from improper input validation in the HTTP POST request handler. The fortEquipmentIp parameter is directly incorporated into system commands without adequate sanitization or escaping of shell metacharacters. This classic injection pattern allows attackers to break out of the intended command context and inject arbitrary commands using standard shell syntax such as semicolons, pipes, or command substitution operators.

Attack Vector

The attack is executed remotely over the network by sending a crafted HTTP POST request to the /equipment/get_Information endpoint. The attacker manipulates the fortEquipmentIp parameter to include shell metacharacters and malicious commands. For example, an attacker could append command separators (such as ;, |, or &&) followed by arbitrary system commands to the IP address value, causing the backend system to execute both the legitimate operation and the injected commands.

The vulnerability mechanism involves the unsanitized fortEquipmentIp parameter being concatenated into a system command string. When the application processes this request, it executes both the intended functionality and any injected commands. Technical details and proof-of-concept information can be found in the GitHub CVE Issue Discussion.

Detection Methods for CVE-2026-1414

Indicators of Compromise

• Unusual HTTP POST requests to /equipment/get_Information containing shell metacharacters in the fortEquipmentIp parameter
• Unexpected child processes spawned by the web application process
• System command execution logs showing commands with IP address parameters containing special characters
• Network traffic anomalies involving outbound connections from the management system to unknown destinations

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block requests containing shell metacharacters in the fortEquipmentIp parameter
• Deploy intrusion detection signatures for HTTP POST requests to /equipment/get_Information with suspicious patterns
• Monitor application logs for requests containing characters such as ;, |, &&, $(), or backticks in equipment-related parameters
• Use endpoint detection and response (EDR) solutions to identify anomalous process chains originating from the web server

Monitoring Recommendations

• Enable verbose logging on the Sangfor Operation and Maintenance Security Management System to capture full request details
• Configure SIEM alerts for any access attempts to the vulnerable endpoint with non-standard parameter values
• Monitor system process creation events for unexpected commands executed by the web application user context
• Implement network segmentation monitoring to detect lateral movement attempts following potential exploitation

How to Mitigate CVE-2026-1414

Immediate Actions Required

• Restrict network access to the /equipment/get_Information endpoint to trusted IP addresses only
• Implement input validation at the network perimeter using a web application firewall
• Review and audit logs for any historical exploitation attempts
• Consider temporarily disabling the affected functionality if business operations permit

Patch Information

No vendor patch information is currently available in the CVE data. Organizations should monitor vendor communications from Sangfor for official security updates. Additional vulnerability details are available through VulDB #342803 and the VulDB CTI ID #342803 for tracking purposes.

Workarounds

• Apply strict network segmentation to limit access to the management system from untrusted networks
• Implement application-layer filtering to block requests containing shell metacharacters in the fortEquipmentIp parameter
• Deploy a reverse proxy with request validation to sanitize input before it reaches the vulnerable application
• Enforce allowlist validation on the fortEquipmentIp parameter to accept only valid IP address formats

# Example: Nginx location block to restrict access and add basic input filtering
location /equipment/get_Information {
    # Restrict access to internal networks only
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
    
    # Block requests with common shell metacharacters
    if ($request_body ~* "[;|&`$()]") {
        return 403;
    }
    
    proxy_pass http://backend;
}