CVE-2020-8505 in School Management Software
Summary
by MITRE
School Management Software PHP/mySQL through 2019-03-14 allows office_admin/?action=deleteadmin CSRF to delete a user.
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Analysis
by VulDB Data Team • 02/03/2025
This vulnerability exists in School Management Software version 2019-03-14 and earlier, where the application fails to implement proper anti-CSRF (Cross-Site Request Forgery) protection mechanisms for the administrative user deletion functionality. The affected endpoint office_admin/?action=deleteadmin accepts user deletion requests without validating the authenticity of the request source, making it susceptible to cross-site request forgery attacks. The vulnerability specifically targets office administrators who possess elevated privileges to manage user accounts within the system.
The technical flaw stems from the absence of anti-CSRF tokens or similar validation mechanisms that would ensure requests originate from legitimate sources within the application. When an authenticated administrator performs actions on the system, the application should verify that the request comes from a trusted source and not from an external malicious website or script. Without this protection, an attacker can craft malicious web pages or exploit existing vulnerabilities to trick authenticated administrators into executing unintended user deletion commands. This weakness allows unauthorized users to remove administrative accounts or regular users from the system without proper authorization.
The operational impact of this vulnerability is significant for organizations using the School Management Software, as it compromises the integrity and availability of user accounts within the system. An attacker who successfully exploits this vulnerability can delete administrative accounts, potentially leading to complete system compromise or denial of service. The vulnerability affects the core user management functionality of the application, which can result in unauthorized access to sensitive student and staff information, disruption of educational services, and potential data loss. The attack requires minimal technical expertise and can be executed through social engineering or by leveraging existing vulnerabilities in the target environment.
To mitigate this vulnerability, administrators should immediately apply the vendor-provided security patches or updates that implement proper anti-CSRF protection mechanisms. The solution involves implementing CSRF tokens that are generated per session and validated for each request to the deleteadmin endpoint. Additionally, organizations should ensure that all administrative functions within the application require proper authentication and authorization checks, including implementing proper session management and request validation. This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses, and represents a critical risk in web application security that directly impacts the principle of least privilege and system integrity. Organizations should also consider implementing web application firewalls and monitoring for suspicious administrative activities to detect potential exploitation attempts. The ATT&CK framework categorizes this as a privilege escalation technique through manipulation of administrative functions, emphasizing the need for proper access controls and validation of administrative operations.