CVE-2021-27315 Scanner

The Doctor Appointment System is designed to streamline the process of scheduling medical appointments. It is used primarily by healthcare providers, including clinics and hospitals, to manage patient appointments efficiently. This web-based platform allows patients to book, cancel, or reschedule their appointments online, significantly reducing the administrative burden on staff. It also improves patient satisfaction by offering a convenient way to manage their healthcare needs. The system is crucial for modern healthcare facilities seeking to improve their service delivery through technology.

The vulnerability is present in the 'contactus.php' page, where the 'comment' parameter is improperly handled. Attackers can exploit this by injecting malicious SQL statements into the comment field, which the backend database executes without proper sanitization. This injection can cause the application to perform unintended actions, such as revealing sensitive information. The exploitation does not require authentication, making it accessible to any malicious actor. The impact includes unauthorized data access and potential system compromise, highlighting a critical security oversight in application development.

Exploiting this vulnerability can lead to several adverse effects, including unauthorized access to sensitive patient data, manipulation or deletion of data, disruption of the appointment scheduling system, and potential reputational damage to the healthcare provider. It compromises the confidentiality, integrity, and availability of the system's data, posing a significant risk to both the healthcare provider and its patients. The vulnerability can also serve as a gateway for further attacks, exacerbating the potential damage.

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References

• https://www.sourcecodester.com/php/14182/doctor-appointment-system.html
• http://packetstormsecurity.com/files/161642/Doctor-Appointment-System-1.0-Blind-SQL-Injection.html
• https://nvd.nist.gov/vuln/detail/CVE-2021-27315