Source: cna@vuldb.com
A weakness has been identified in itsourcecode Document Management System 1.0. This impacts an unknown function of the file /deluser.php. Executing a manipulation of the argument user2del can lead to sql injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
itsourcecode Document Management System 1.0 is vulnerable to a critical SQL injection flaw in the /deluser.php file, allowing for remote attackers to potentially gain unauthorized access and control over the system's database. This vulnerability is publicly known and easily exploitable, posing a significant risk of data breaches and system compromise.
Step 1: Identify the Vulnerability: The attacker identifies the /deluser.php file within the itsourcecode Document Management System 1.0.
Step 2: Craft the Payload: The attacker constructs a malicious SQL injection payload designed to exploit the user2del parameter. This payload could be crafted to retrieve sensitive information, modify data, or execute arbitrary commands.
Step 3: Payload Delivery: The attacker sends a crafted HTTP request to /deluser.php, including the malicious SQL injection payload within the user2del parameter.
Step 4: Server-Side Execution: The server receives the request and, due to the lack of input validation, directly incorporates the attacker's payload into an SQL query.
Step 5: Database Manipulation: The database server executes the manipulated SQL query, potentially allowing the attacker to retrieve, modify, or delete data, or even gain control of the underlying system.
Step 6: Result Extraction: The attacker observes the response from the server, which may contain the results of the injected SQL query, confirming the successful exploitation.
The vulnerability stems from insufficient input validation and sanitization of the user2del parameter within the /deluser.php script. The script likely directly incorporates user-supplied input into an SQL query without proper escaping or filtering. This allows an attacker to inject malicious SQL code, manipulating the query's logic to extract sensitive information, modify data, or potentially execute arbitrary commands on the database server. The root cause is a failure to implement parameterized queries or other secure coding practices to prevent SQL injection.
While no specific APTs are directly linked in the provided information, the public availability of the exploit and the nature of the vulnerability make it attractive to various threat actors, including those seeking to steal data, disrupt services, or establish a foothold within the target network. The severity of the vulnerability warrants immediate attention and remediation. CISA KEV status: Likely candidate for future inclusion.
Web Application Firewall (WAF) logs showing suspicious SQL injection attempts against /deluser.php.
Intrusion Detection System (IDS) alerts triggered by SQL injection signatures in network traffic.
Database server logs revealing unusual query patterns or errors related to the user2del parameter.
Examination of web server access logs for unusual HTTP requests targeting /deluser.php with suspicious parameters.
Review of application source code (if available) for improper input validation in the /deluser.php file.
Implement parameterized queries or prepared statements to prevent SQL injection. This separates the SQL code from the user-supplied input, ensuring that the input is treated as data and not as executable code.
Sanitize and validate all user-supplied input, especially the user2del parameter. Use allowlists to restrict the acceptable characters and formats for the input.
Apply the latest security patches for itsourcecode Document Management System 1.0. If no patches are available, consider migrating to a more secure and supported document management system.
Implement a Web Application Firewall (WAF) to filter malicious traffic and block SQL injection attempts.
Regularly scan the system for vulnerabilities using vulnerability scanners.
Enforce the principle of least privilege for database users, limiting their access to only the necessary resources.
Monitor database activity for suspicious behavior, such as unusual query patterns or unauthorized access attempts.