Blind SQL Injection in Kiwire Captive Portal nas-id Parameter

Successful exploitation allows an attacker to execute unauthorized SQL statements against the Kiwire Captive Portal database. This can lead to exfiltration of sensitive data stored by the portal, unauthorized modification or deletion of records, and broader compromise of the application's data integrity. Depending on database privileges and deployment specifics, the attacker may be able to enumerate schema contents, extract credentials or user information, and disrupt portal operation.

Until the vendor fix can be applied, restrict access to the captive portal and any administrative or backend interfaces to only necessary networks and users. Monitor application and database logs for anomalous requests involving the nas-id parameter, repeated inference-style requests, or unusual query timing patterns consistent with blind SQL injection. Where possible, deploy compensating controls such as WAF rules or reverse-proxy filtering to block malicious input targeting SQL metacharacters and injection patterns in the nas-id parameter. Reduce database account privileges used by the application to the minimum required to limit impact if exploitation occurs.

Apply the vendor-provided patch by updating Kiwire Captive Portal to the latest version released by SynchroWeb. If patch acquisition or deployment assistance is required, contact the vendor directly. After patching, validate that the nas-id parameter is properly handled, review database and application logs for signs of prior exploitation, rotate any credentials stored in or accessible from the affected database if compromise is suspected, and assess database contents for unauthorized changes.