VICIdial is a widely used, open-source contact center suite designed for handling inbound and outbound calls, used by organizations worldwide in call center operations. It’s typically employed by small to medium-sized businesses, telemarketing companies, and support centers. The software helps with tasks like automatic call distribution, interactive voice response, and predictive dialing. It is commonly integrated into telephony systems and CRMs to improve customer handling efficiency. Due to its critical role in customer interactions, the software’s security is essential to maintaining operational integrity and protecting customer data.
The SQL Injection vulnerability in VICIdial allows unauthenticated attackers to perform arbitrary SQL queries on the database through a specific endpoint. Attackers can enumerate or manipulate database records, posing a severe risk to data confidentiality and system integrity. VICIdial’s lack of proper validation for user-supplied inputs makes it susceptible to this injection flaw. This vulnerability may enable attackers to retrieve sensitive information, including stored credentials, directly from the database.
The vulnerability affects the log_custom_report endpoint of VICIdial’s web interface, specifically within the VERM/VERM_AJAX_functions.php script. Attackers can insert malicious SQL commands via the function parameter, bypassing authentication and exploiting the Authorization header. When exploited, this endpoint does not sanitize inputs, enabling injection payloads to retrieve or manipulate database information. Additionally, the default plain text credential storage in the database exacerbates the potential impact of a successful injection. The vulnerability relies on time-based delays to confirm the injection's success.
If exploited, attackers could gain access to sensitive data stored in the VICIdial database, including customer details and internal records. They could also execute additional SQL commands to alter or delete data, potentially disrupting business operations. The vulnerability might further expose the organization to additional security risks if credentials stored in the database are compromised. Unchecked, this could lead to unauthorized access, privilege escalation, or complete system compromise.
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References:
- Regularly update VICIdial to the latest secure versions.
- Implement strict input validation and parameterized queries to avoid SQL injection risks.
- Encrypt sensitive data stored in the database, especially credentials.
- Restrict access to the database to authorized users only.
- Regularly audit system logs to detect any signs of suspicious activity.
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