CVE-2025-30044: CliniNET RCE Vulnerability

CVE-2025-30044 Overview

CVE-2025-30044 is a critical command injection vulnerability affecting CGM CliniNET, a hospital information system. The vulnerability exists in multiple CGI Perl script endpoints where user-supplied parameters are not sufficiently normalized before processing, enabling attackers to inject and execute arbitrary system commands on affected servers.

Critical Impact

Attackers on adjacent networks can exploit insufficient input normalization in CliniNET CGI endpoints to achieve full system compromise with no authentication required.

Affected Products

• CGM CliniNET Hospital Information System
• Affected endpoints: /cgi-bin/CliniNET.prd/utils/usrlogstat_simple.pl
• Affected endpoints: /cgi-bin/CliniNET.prd/utils/usrlogstat.pl
• Affected endpoints: /cgi-bin/CliniNET.prd/utils/userlogstat2.pl
• Affected endpoints: /cgi-bin/CliniNET.prd/utils/dblogstat.pl

Discovery Timeline

• 2026-03-02 - CVE CVE-2025-30044 published to NVD
• 2026-03-02 - Last updated in NVD database

Technical Details for CVE-2025-30044

Vulnerability Analysis

This vulnerability is classified as CWE-78 (Improper Neutralization of Special Elements used in an OS Command), commonly known as OS Command Injection. The affected CGI Perl scripts in CGM CliniNET fail to properly sanitize and normalize user-supplied input parameters before passing them to system command execution functions.

Healthcare information systems like CliniNET process sensitive patient data and are critical infrastructure components. The exploitation of this vulnerability could allow attackers to gain unauthorized access to protected health information (PHI), disrupt hospital operations, or use the compromised system as a pivot point for further network intrusion.

Root Cause

The root cause of CVE-2025-30044 lies in insufficient input validation and normalization within the affected Perl CGI scripts. The parameters passed to the vulnerable endpoints (usrlogstat_simple.pl, usrlogstat.pl, userlogstat2.pl, and dblogstat.pl) are not properly sanitized to remove or escape shell metacharacters. This allows specially crafted input containing command separators (such as ;, |, &&, or backticks) to be interpreted as additional shell commands.

Attack Vector

The attack vector is classified as Adjacent Network, meaning an attacker must have access to the same network segment as the vulnerable CliniNET deployment. This could include internal hospital networks, partner networks, or any network with connectivity to the CliniNET web interface.

The attack does not require authentication (PR:N) or user interaction (UI:N), and has low attack complexity (AC:L). An attacker can craft malicious HTTP requests to the vulnerable CGI endpoints, embedding OS commands within the unvalidated parameters. When the Perl scripts process these requests, the injected commands are executed with the privileges of the web server process.

The vulnerability mechanism involves parameter injection into Perl system calls. Without verified code examples available, the exploitation pattern typically involves appending shell metacharacters and commands to legitimate parameter values. For example, parameter values containing semicolons or pipe characters can break out of the intended command context and execute arbitrary system commands. Refer to the CERT Poland security advisory for detailed technical information.

Detection Methods for CVE-2025-30044

Indicators of Compromise

• HTTP requests to vulnerable endpoints containing shell metacharacters (;, |, &&, `, $()) in parameter values
• Unusual process spawning from the web server process (httpd, apache2) executing commands like wget, curl, nc, bash, or sh
• Unexpected outbound network connections from the CliniNET server
• Modified files in web-accessible directories or system locations
• Creation of unauthorized user accounts or SSH keys

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block command injection patterns in requests to /cgi-bin/CliniNET.prd/utils/ endpoints
• Monitor HTTP access logs for suspicious parameter patterns containing shell metacharacters
• Deploy intrusion detection signatures targeting OS command injection in CGI parameters
• Configure endpoint detection and response (EDR) solutions to alert on suspicious process trees originating from web server processes

Monitoring Recommendations

• Enable verbose logging on web servers hosting CliniNET and forward logs to SIEM for analysis
• Monitor system calls from CGI processes for execution of shell interpreters or system utilities
• Track file integrity on CliniNET server systems to detect unauthorized modifications
• Implement network traffic analysis to identify potential command-and-control communications from compromised systems

How to Mitigate CVE-2025-30044

Immediate Actions Required

• Restrict network access to CliniNET CGI endpoints to only authorized administrative IP addresses
• Implement WAF rules to block requests containing command injection payloads to the affected endpoints
• Review web server logs for evidence of exploitation attempts
• If exploitation is suspected, isolate affected systems and conduct forensic analysis
• Contact CGM vendor for security patch availability and deployment guidance

Patch Information

Refer to CGM's official product page for patch availability and update instructions. Organizations should contact CGM support directly for security advisories and remediation guidance specific to their CliniNET deployment version.

Workarounds

• Apply network segmentation to restrict access to CliniNET servers from trusted network segments only
• Implement strict input validation at the web server or reverse proxy level using ModSecurity or similar WAF solutions
• Disable or remove the vulnerable CGI endpoints if they are not required for business operations
• Deploy application-level allowlist filtering for expected parameter values
• Consider placing CliniNET behind a VPN for an additional layer of access control

Recommended WAF rule implementation to block common command injection patterns:

# ModSecurity rule to block command injection in CliniNET endpoints
SecRule REQUEST_URI "@contains /cgi-bin/CliniNET.prd/utils/" \
    "id:1001,phase:2,deny,status:403,log,\
    chain"
SecRule ARGS "@rx [;|&`$()]" \
    "msg:'Potential Command Injection in CliniNET parameters'"