CVE-2025-30044 in CLININET
Summary
by MITRE • 03/02/2026
In the endpoints "/cgi-bin/CliniNET.prd/utils/usrlogstat_simple.pl", "/cgi-bin/CliniNET.prd/utils/usrlogstat.pl", "/cgi-bin/CliniNET.prd/utils/userlogstat2.pl", and "/cgi-bin/CliniNET.prd/utils/dblogstat.pl", the parameters are not sufficiently normalized, which enables code injection.
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Analysis
by VulDB Data Team • 03/02/2026
This vulnerability exists within a web application's cgi-bin directory where multiple perl script endpoints handle user input without proper sanitization or normalization. The affected scripts usrlogstat_simple.pl, usrlogstat.pl, userlogstat2.pl, and dblogstat.pl all process parameters that flow directly into system execution contexts without adequate validation or encoding. This creates a critical code injection vector that allows attackers to execute arbitrary commands on the underlying system. The vulnerability stems from insufficient input normalization practices that fail to properly escape or filter special characters that could be interpreted as command delimiters or shell metacharacters. The flaw represents a classic case of improper input validation that directly enables command injection attacks, making it particularly dangerous as it provides attackers with potential full system access. The vulnerability affects multiple endpoints simultaneously, indicating a systemic issue in the application's parameter handling architecture rather than isolated script-level problems.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through any of the affected endpoints, where the unvalidated parameters are directly incorporated into system calls or shell commands. This allows for arbitrary code execution with the privileges of the web application user, potentially leading to complete system compromise. The lack of parameter normalization means that special characters such as semicolons, pipes, or backticks can be interpreted by the shell, enabling attackers to chain commands or execute malicious payloads. This type of vulnerability maps directly to CWE-77 and CWE-94 in the Common Weakness Enumeration catalog, specifically addressing improper neutralization of special elements used in OS commands and improper validation of input. The attack surface is significantly broadened due to the presence of multiple vulnerable endpoints, each potentially exploitable through different attack vectors or input manipulation techniques.
The operational impact of this vulnerability extends beyond immediate code execution capabilities to encompass potential data breaches, system compromise, and service disruption. An attacker who successfully exploits this vulnerability can gain unauthorized access to sensitive system resources, potentially leading to credential theft, data exfiltration, or persistent backdoor installation. The affected application likely handles user logging and database statistics, making it a prime target for attackers seeking to manipulate or extract system information. This vulnerability directly aligns with several MITRE ATT&CK techniques including T1059.001 for command and script interpreter execution and T1566 for credential harvesting through web applications. The presence of multiple vulnerable endpoints increases the likelihood of successful exploitation and provides attackers with alternative attack paths if one endpoint is patched or monitored. Organizations may face regulatory compliance violations and significant reputational damage if this vulnerability is exploited in production environments.
Mitigation strategies should focus on implementing comprehensive input validation and normalization across all affected endpoints. The primary defense involves sanitizing all user-supplied parameters through proper escaping, encoding, or filtering mechanisms before they are processed by system commands. Implementing a whitelist-based approach for parameter validation, where only known safe characters and formats are accepted, provides robust protection against injection attacks. Organizations should also consider employing parameterized queries or command execution methods that do not directly incorporate user input into system calls. Regular security assessments and input validation reviews should be conducted to identify and remediate similar issues across the application codebase. The implementation of web application firewalls and input validation rules can provide additional layers of protection while the application is being patched. Additionally, privilege separation and principle of least privilege should be enforced to limit the potential impact of successful exploitation attempts, ensuring that the web application operates with minimal required permissions to reduce the attack surface.