Source: cve@mitre.org
Multiple SQL injection vulnerabilities in Infoproject Biznis Heroj allow remote attackers to execute arbitrary SQL commands via the (1) username and (2) password parameters to login.php, (3) the filter parameter to widget.dokumenti_lista.php, and (4) the fin_nalog_id parameter to nalozi_naslov.php.
Infoproject Biznis Heroj is vulnerable to multiple SQL injection flaws, allowing remote attackers to execute arbitrary SQL commands. Successful exploitation could lead to complete system compromise, including data exfiltration, modification, and potential server takeover, impacting the confidentiality, integrity, and availability of sensitive information.
Step 1: Identify Vulnerable Parameters: The attacker identifies the vulnerable parameters: username and password in login.php, filter in widget.dokumenti_lista.php, and fin_nalog_id in nalozi_naslov.php.
Step 2: Craft Malicious Payload: The attacker crafts a malicious SQL injection payload designed to achieve a specific goal, such as retrieving sensitive data, bypassing authentication, or executing arbitrary commands on the database server.
Step 3: Inject Payload: The attacker injects the crafted payload into one of the identified vulnerable parameters, typically through a web browser or a custom script.
Step 4: Execute Query: The application, due to the lack of input validation, incorporates the attacker's payload into a SQL query and executes it against the database.
Step 5: Exploit Results: The database server executes the injected SQL code. Depending on the payload, the attacker can then retrieve data, modify data, or gain further access to the system.
The vulnerability stems from insufficient input validation and sanitization of user-supplied data before it is used in SQL queries. Specifically, the application fails to properly escape or filter user input provided through parameters like username, password, filter, and fin_nalog_id. This allows an attacker to inject malicious SQL code into these parameters. When the application executes these queries, the injected code is interpreted by the database, leading to unauthorized access and control. The root cause is a lack of parameterized queries or prepared statements, and a failure to implement proper input validation techniques like whitelisting or blacklisting of characters.
While specific APT groups are not directly linked to this CVE, the ease of exploitation and potential for high impact make it a target for various threat actors, including those seeking financial gain or data theft. This vulnerability could be leveraged by commodity malware campaigns. Not listed on CISA KEV.
Web application firewall (WAF) logs showing unusual SQL syntax in HTTP requests, particularly in the username, password, filter, or fin_nalog_id parameters.
Database server logs revealing unexpected SQL queries or errors, especially those containing suspicious characters or commands (e.g., UNION, SELECT, DROP).
Network traffic analysis identifying unusual HTTP POST requests to login.php, widget.dokumenti_lista.php, or nalozi_naslov.php with suspicious payloads in the request body.
Intrusion Detection System (IDS) alerts triggered by SQL injection signatures.
File integrity monitoring detecting unauthorized changes to database files or web application files.
Implement parameterized queries or prepared statements to prevent SQL injection. This separates the SQL code from the user-supplied data.
Thoroughly validate and sanitize all user input. This includes whitelisting allowed characters and rejecting or escaping potentially malicious characters.
Employ a Web Application Firewall (WAF) to filter malicious requests and block SQL injection attempts.
Regularly update the Infoproject Biznis Heroj software to the latest version, which may include patches for this vulnerability.
Enforce the principle of least privilege for database users, limiting their access to only the necessary resources.
Conduct regular penetration testing and vulnerability assessments to identify and address security weaknesses.
Implement strong password policies and multi-factor authentication for user accounts.